Attachment_0016_M82E3_Percussion_Primer_Draft_Spec(Foam_Washer).pdf

MIL-DTL-M82-FW

(AR) (AR)

DRAFT

DETAIL SPECIFICATION-Draft

PRIMER, PERCUSSION, M82-FW

This specification is approved for use by the US Army and is available for use by all Departments and Agencies of the Department of Defense.

1. SCOPE

1.1 Scope. This specification covers the metal parts/loading, assembling and packing for Primer, Percussion, M82-FW (Foam Washer attached to plunger configuration).

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed.

Comments, suggestions, or questions on this document should be addressed to: Commander, U.S.

Army ARDEC, ATTN: AMSRD-AAR-QES-E, Picatinny, New Jersey 07806-5000 or e-mailed to usarmy.picatinny.ardec.list.ardec-stdzn-branch@mail.mil. Since contact information can change, you may want to verify the currency of this information using ASSIST Online database at https:/ /assist.dla.mil.

NOTE: This draft 11 April 2017 prepared by U.S. Army ARDEC, RDAR- QES-E, Picatinny Arsenal, NJ has not been approved and is subject to modification. DO NOT USE PRIOR TO APPROVAL. (Project #?)

INCH-POUND

Distribution Statement D- Distribution Authorized to the Department of Defense and U.S.

DOD Contractors only (Critical Technology, 01 June 2015). Other requests shall be referred to office of the Project Manager, SFAE-AMO-CAS, ATTN:Conventional Ammo Division, Picatinny Arsenal, NJ 07806.

mailto:usarmy.picatinny.ardec.list.ardec-stdzn-branch@mail.mil https://assist.dla.mil/

MIL-DTL-82-FW

2.2 Government documents

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this specification to the extent specified herein.

Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation.

SPECIFICATIONS

STANDARDS

DEPARTMENT OF DEFENSE

MIL-P-223 - Powder, Black

MIL-STD-331 - Fuze and Fuze Component, Environmental and Performance Tests for.

MIL-STD-1168 - Ammunition Lot Numbering and Ammunition Data Card

MIL-STD-1916 - DOD Preferred Methods for Acceptance of Product

TT-C-490 - Chemical Conversion Coatings and Pretreatments for Metallic Substrates (Base for Organic Coatings)

(Copies of these documents are available online at http://quicksearch.dla.mil/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.)

2.2.2 Other Government documents, drawings and publications. The following other Government documents, drawings and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation (see 6.2).

US ARMY ARMAMENT RESEARCH, DEVELOPMENT AND

ENGINEERING CENTER (ARDEC) DRAWINGS

8796535 Carton, packing, domestic 8796678 Carton, packing, overseas 8796679 Box, packing, overseas 8802117 Testing Fixture Primer Sensitivity Sub Assembly & Details 8861197 Primer, Percussion, M82, Assembly 8861198-1 Body (external groove) 8861199 Ignition Element Assembly 8861200 Cup, Ignition 8861201 Container, charge assembly http://quicksearch.dla.mil/

8861203 Tube, container 8861204 Container assembly 8861206 Closure 8861211-FW Plunger WSHR001 Foam Washer 10522621 Primer No.34 DS000515 Packing and Marking for Box, Wirebound for M82 DS000516 Packing and Marking for Box, Metal, Ammunition, M2A1 for M82 DS000517 Packing and Marking for Box, Fiberboard for M82 DS000848 Combination of Adopted Items For: M82-FW

U.S. ARMY DEFENSE AMMUNITION CENTER (DAC) DRAWINGS

19-48-4116/158G Unitization Procedures for Boxed Ammunition and Components on 4-Way entry pallets 19-48-4116-20PA1002 Basic Unitization Procedures ACV00561 Unit Load Markings ACV00831 Heat Treatment of Wooden Pallets, Skids, Filler Assemblies, and Dunnage Assemblies

Test Operation Procedure (TOP)

TOP 4-2-602 - Test Operations Procedure 4-2-602 U.S. Army Test and Evaluation Command

2.3 Non-Government publications.

AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM

INTERNATIONAL)

ASTM B154 - Standard Test Method for Mercurous Nitrate Test for Copper Alloys ASTM E112 - Standard Test Methods for Rockwell Hardness of Metallic Materials ASTM E18 - Standard Test Methods for Rockwell Hardness of Metallic Materials

(Copies of ASTM standards may be ordered online at http://www. Astm.org/ or from the ASTM International, 100 Barr Harbor Drive, Conshohocken, PA 19428-2959)’’) http://www/

2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence.

Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. REQUIREMENTS

3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2.

3.2 Conformance. A sample shall be subjected to conformance inspection in accordance with 4.3.

3.3 Materials, components and assemblies. Materials, components, and assemblies shall be in accordance with all requirements specified on drawings 8861197, 8861199, 8861201, WSHR001, DS000515, 19-48-4116/158G.

3.3.1 Primer No. 34. The primer No. 34 shall comply with Drawing 10522621 when tested as Cartridge, 7.62mm, NATO, Ball, M80.

3.4 Ammunition lot numbering. Ammunition lot numbers shall be assigned in accordance with MIL-STD-1168C.

3.5 Moisture content of black powder. The moisture content of the black powder at the loading station, at the time of loading shall not exceed 0.5 percent when determined as specified in 4.4.3.

3.6 Mercurous Nitrate Test. The primer bodies shall exhibit no crack when subjected to the mercurous nitrate test specified in 4.7.9.

3.7 Non-Functioning Test. The primer, without the black powder charge, shall not function under an applied impact energy value of 24.51 inch ounces minimum (min.), when tested as specified in 4.7.1.

3.7.1 Non-Functioning sampling plan. The sampling plan for the non-functioning test shall be in accordance with table III. Any primer which fails to comply with the applicable requirement shall be classified as defective. The test shall be performed as specified in 4.7.1.

3.8 Functioning

3.8.1 Static Test. The primers, with the black powder charge, shall function under an applied impact energy value of 147.06 inch ounces maximum (max.) when tested as specified in 4.7.3

3.8.2 First Article Ballistic Test. The primers, with the black powder charge, shall fire, with no perceptible hangfires, metal parts separation, or evidence of rupture or erosion and the primer must obturate and shall remain intact upon firing, when tested as specified in 4.7.4.

3.9 Modified Bruceton sensitivity test. A modified Bruceton sensitivity test shall be performed on each lot of No. 34 primers for use in the M82 primers. The test shall be conducted in accordance with 4.7.5 and the test results shall be fully evaluated for acceptance by the Technical Agencies prior to use in the M82 primers.

3.10 Air Pressure test. 150 container assemblies shall be randomly selected for this test.

3.11 Rockwell Hardness test. Ten bodies shall be randomly selected for this test.

3.12 Grain Size test. Ten bodies shall be randomly selected for this test.

3.13 Rupture test. 110 container assemblies shall be randomly selected for this test.

3.14 Workmanship. Components shall be free of burns, sharp edges, cracks, dirt, grease, corrosion, and other foreign matter. Cleaning methods used shall not be injurious to any parts, nor shall the cleaning agents contaminate the parts. All required marking and stamping shall be neat and sharply defined.

4. Verification

Table I. Requirements/verification cross reference matrix

Method of Verification Classes of Verification

1- Analysis 2- Demonstration 3- Examination 4- Test

A - First Article

B - Conformance

Section 3 Requirements Description

Verification Method

Verification Class

Section 4 Verification

1 2 3 4 A B

3.1 First Article X X X X 4.2

3.2 Conformance X X X X 4.6

3.3 Materials, Components and assemblies

X X X X 4.6.2.1- 4.6.2.23

3.4 Ammunition lot

numbering X X X 4.6.1

3.5 Moisture content X X X 4.7.6

3.6 Mercurous nitrate

test X X X X 4.7.9

3.7 Non- Functioning X X X 4.7.1

3.8 Functioning X X X 4.7.2

3.9 Modified bruceton

sensitivity test X X X X 4.7.5

3.10 Air pressure test X X X X 4.7.11

3.11 Rockwell hardness

test X X X X 4.7.14

3.12 Grain size test X X X X 4.7.15

3.13 Rupture test X X X X 4.7.10

3.8.2 Primer assembly first article ballistic test

X X X X 4.7.4

3.10 Workmanship X X X X 4.6.2.1-

4.6.2.23

4.1 Classification of inspection. The following types of inspection shall be conducted on this item:

a. First Article inspection (see 4.2)

b. Conformance Inspection (see 4.6)

4.2 First Article inspection. When specified, a sample shall be subjected to first article verification in accordance with Table II.

4.3 First article rejection. If any assembly, component or test specimen fails to comply with any of the applicable requirements, the first article sample shall be rejected.

4.4 No. 34 Primer Qualification. This is a one-time qualification test for new manufacturers of No. 34 primers for use in the M82 primers.

4.4.1 Submission. Test samples shall be randomly withdrawn from the first lot produced by the new manufacturer of No. 34 primers. The test sample shall be tested in accordance with all the requirements of this specification and with 4.4.2, 4.4.2.1 and

4.4.2.2. Until the first article test has been performed and found to be acceptable (the test data will be evaluated by the Technical Agencies), the contractor is in no way authorized by the Government to initiate second lot production unless otherwise directed by the Contracting Officer.

4.4.2 Ignition element assembly vibration test. One thousand (1000) No. 34 primers shall be loaded into ignition element assemblies (Dwg. 8861199) and tested as follows:

4.4.2.1 Five hundred (500) ignition element assemblies from 4.4.2 shall be conditioned at 145 degrees F for 24 hours and tested in accordance with test #119, procedure 2 of MIL-STD-331C vibration frequency 5Hz-500Hz-5Hz in sweep method.

Sweep logarithmically in 30 minute cycles for one hour. After the vibration test, all the assemblies shall be subjected to visual inspection. Any evidence of breakup of the cellulose disk or dusting of lead styphnate will be cause for rejection of the first article test samples.

4.4.2.2 Five hundred (500) ignition element assemblies from 4.4.2 shall be conditioned at -65 degrees F for 24 hours and tested in accordance with test #119, procedure 2 of MIL-STD-331C vibration frequency 5Hz-500Hz-5Hz in sweep method.

Sweep logarithmically in 30 minute cycles for one hour. After the vibration test, all the assemblies shall be subjected to visual inspection. Any evidence of breakup of the cellulose disk or dusting of lead styphnate will be cause for rejection of the first article test samples.

4.4.3 Loose cargo and functioning test. Four hundred and fifty

(450) No. 34 primers shall be loaded into M82 primers and tested as follows:

4.4.3.1 145 degrees F. One hundred and fifty (150) M82 primers from 4.4.3 shall be conditioned at 145 degrees F for a minimum of 24 hours and subjected to loose cargo test in accordance with TOP 4- 2-602. After the loose cargo test, all the M82 primers shall be tested for functioning in a M109 Howitzer with a bump spindle without propelling charge or projectile.

4.4.3.2 70 degrees F. One hundred and fifty (150) M82 primers from 4.4.3 shall be conditioned at 70 degrees F for a minimum of 24 hours and subjected to loose cargo test in accordance with TOP 4-2-602. After the loose cargo test, all the M82 primers shall be tested for functioning in a M109 Howitzer with a bump spindle without propelling charge or projectile.

4.4.3.3 -65 degrees F. One hundred and fifty (150) M82 primers from 4.4.3 shall be conditioned at -65 degrees F for a minimum of 24 hours and subjected to loose cargo test in accordance with TOP 4-2-602. After the loose cargo, all the M82 primers shall be tested for functioning in a M109 Howitzer with a bump spindle without propelling charge or projectile.

4.5 M82 primer functioning test. Two thousand (2000) No. 34 primers shall be loaded into M82 primers and tested as follows:

4.5.1 145 degrees F. One thousand (1000) M82 primers from 4.5 shall be conditioned at 145 degrees F for a minimum of 24 hours and tested for functioning in a M109 Howitzer with a bump spindle without propelling charge or projectile.

4.5.2 -65 degrees F. One thousand (1000) M82 primers from 4.5 shall be conditioned at -65 degrees F for a minimum of 24 hours and tested for functioning in a M109 Howitzer with a bump spindle without propelling charge or projectile.

Table II. First article inspection.

Number of FAT Samples Requirement Paragraph

Inspection Method

Cup, Ignition, Dwg. 8861200 Examination for Defects

25 3.3 4.6.2.5

Closure, Dwg. 8861206 Examination for Defects

25 3.3 4.6.2.3

Body, Dwg. 8861198 Examination for Defects

3.3 4.6.2.4

Plunger, Dwg. 8861211-FW Examination for Defects

25 3.3 4.6.2.6

Foam Washer, Dwg. WSHR001 Examination for Defects

25 3.3 4.6.2.16

Container Assembly, Dwg.

8861204

25 3.3

4.6.2.2

Container, charge assembly, prior to sealing closure Dwg. 8861201 Examination for defects

25 3.3 4.6.2.8

Container, charge assembly Dwg. 8861201 Examination for defects

25 3.3 4.6.2.9

Container cup, Dwg. 8861205 Examination for defects

25 3.3 4.6.2.23

Ignition Element Assembly, Dwg. 8861199 Examination for Defects

25 3.3 4.6.2.7

Nonfunctioning test Dwg. 8861197 Examination for defects

150 3.7 4.7.1

Functioning test(without black powder) Dwg. 8861197 Examination for defects

900 3.8 4.7.2.1

Functioning test (with black powder) Dwg. 8861197 Examination for defects

25 3.8 4.7.2.2

Primer, Percussion, M82, Assembly Dwg. 8861197

3.3

4.6.2.10-4.6.2.12

Tube,container Dwg. 8861203 Examination for defects

25 3.3 4.6.2.1

Assembly, prior to inserting ignition element Dwg. 8861197 Examination for defects

25 3.3 4.6.2.10

Assembly, prior to assembling container charge assembly Dwg. 8861197 Examination for defects

25 3.3 4.6.2.11

Modified Bruceton Test Examination for defects

200 3.9 4.7.5

Mercurous Nitrate Test Examination for defects

25 3.6 4.7.9

Air Pressure Test Examination for defects

150 3.10 4.7.11

Rockwell Hardness Test Examination for defects

10 3.11 4.7.14

Grain Size Test Examination for defects

10 3.12 4.7.15

Rupture Test

110 3.13 4.7.10

Table III. First article inspection (packaging)

Examination or Test Number of FAT Samples

Requirement Paragraph

Inspection Method

Packing and Marking for box, fiberboard (Sealed Envelope)

DS000517

10 5.1 4.6.2.17

Packing and Marking for box, fiberboard (Fiberboard Box)

DS000517

8 5.1 4.6.2.18 metal, ammunition, M2A1 (prior to closing)

DS000516

8 5.1 4.6.2.19 metal, ammunition, M2A1 (closed)

DS000516

8 5.1 4.6.2.20

Packing and marking for box, wirebound

DS000515

4 5.1 4.6.2.21

Unitization procedures for boxed ammunition and components on 4-way entry pallets 19-48-4116/158G

1 5.1 4.6.2.22

4.6 Conformance inspection.

4.6.1 Lot formation. Lot formation shall be in accordance with lot formation requirement of MIL-STD-1916 paragraph 4.2, Acceptance by Tables. In addition, each lot of primers shall contain:

a. Percussion primers of one lot interfix number from one manufacturer.

b. Primer metal components of one lot interfix number from one manufacturer.

c. Black powder from not more than two lot numbers with the same interfix number from one manufacturer. A lot of black powder shall be used to completion.

4.6.2 Classification of characteristics

a. Sampling requirements. Inspection sampling requirements for critical, major and minor characteristics are defined in MIL-STD-1916. Unless specified otherwise, Verification Level VII in addition to 100% inspection shall be used for all characteristics defined as Critical, Verification Level IV shall be used for all characteristics defined as Majors and Inspection Level II for all Minor characteristics.

b. Conformance inspection. Conformance inspection shall be performed in accordance with paragraph 4.6.2.1 through 4.6.2.23. For all conformance inspections the same sample specimen may be used for all non-destructive examinations or tests.

c. Alternative inspections. Alternative conformance inspections may be submitted and approved in accordance with MIL-STD-1916.

CONFORMANCE INSPECTION

CLASSIFICATION OF CHARACTERISTICS

PARAGRAPH

4.6.2.1

TITLE

Tube, container

DRAWING NUMBER

8861203

CATEGORY

EXAMINATION OR TEST

CONFORMANCE

CRITERIA

REQUIREMENT

PARAGRAPH

PARAGRAPH

REFERENCE/

INSPECTION

METHOD

Critical None defined

Major 101 Pitch diameter of thread minimum, Level IV 3.3 AIE 102 Major diameter of thread, min Level IV 3.3 AIE 103 Length of effective thread, min Level IV 3.3 AIE 104 Crack or deformation Level IV 3.3 Visual

Minor

Concentricity of outside diameter with threads Outside diameter Inside diameter of container cup end Inside diameter opposite cup end Concentricity of inside diameter with thread Diameter of thread pilot, min Concentricity of the inside diameter of cup end with thread Total length Pitch diameter of threads, maximum (max.)

Major diameter of threads, max Width of slots, min Depth of slots Depth to interior shoulder, max Finish improper Evidence of poor workmanship

Level II

Level II Level II Level II Level II Level II

Level II Level II Level II Level II Level II Level II

3.3 3.3 3.3

3.3 3.3 3.3 3.3

AIE

AIE

AIE

AIE

AIE

AIE

AIE

AIE

AIE

AIE

AIE

AIE

Visual

4.6.2.2

Container Assembly

8861204

EXAMINATION OR TEST CONFORMANCE

CRITERIA

REQUIREMENT

PARAGRAPH

PARAGRAPH REFERENCE/

INSPECTION METHOD

Minor

Cup ruptured Air pressure test

Depth to cup, max Braze not 360° Freedom from oil and grease Freedom from alkalies and strong acids Evidence of poor workmanship

Level IV

Level II Level II

Level II

3.3 3.3

3.14

AIE(4.7.11)

Visual Manual(4.7.12)

Manual(4.7.13)

4.6.2.3

Closure

8861206

EXAMINATION OR TEST CONFORMAN

CE CRITERIA

REQUIREMENT

PARAGRAPH

PARAGRAPH REFERENCE/

INSPECTION METHOD

Major None defined

Disc ruptured

Disc not completely fastened to washer

203 Washer split Level II 3.3 Visual

204 Evidence of poor workmanship Level II 3.3 Visual

4.6.2.4 Body(external groove)

Drawing Number

8861198-1(Draft)

Classification Examination Or Test Conformance Requirement Inspection Method Criteria Paragraph

Concentricity of thread with outside surface Level IV 3.3 AIE

Concentricity of hole through base with outside surface Level IV 3.3 AIE

Concentricity of interior surface above hole through base with outside surface Level IV 3.3 AIE

Concentricity of large inside diameter with outside diameter Level IV 3.3 AIE

105 Pitch diameter of threads, max Level IV 3.3 AIE 106 Minor diameter of thread, max Level IV 3.3 AIE 107 Thickness of flange Level IV 3.3 AIE 108 Length of groove Level IV 3.3 AIE 109 Distance of groove Level IV 3.3 AIE 110 Diameter of groove Level IV 3.3 AIE 111 Chamfer to groove Level IV 3.3 AIE

Minor 201 Length to datum diameter Level II 3.3 AIE

Thickness from base to bottom of igniter Seat Level II 3.3 AIE

Concentricity of flange with outside surface Level II 3.3 AIE

Thickness from base to shoulder below igniter seat Level II 3.3 AIE

205 Diameter of plunger hole through base Level II 3.3 AIE

Diameter of cavity above hole through base Level II 3.3 AIE

207 Diameter of flange Level II 3.3 AIE 208 Large inside diameter Level II 3.3 AIE 209 Pitch diameter, min Level II 3.3 AIE 210 Total length Level II 3.3 AIE 211 Length to thread, max Level II 3.3 AIE 212 Length to end of thread, min Level II 3.3 AIE 213 Finish improper Level II 3.3 Visual 214 Evidence of poor workmanship Level II 3.3 Visual

Cup, Ignition

Drawing Number

4.6.2.5 8861200

101 Depth of primer cavity Level IV 3.3 AIE 102 Diameter of primer cavity Level IV 3.3 AIE 103 Concentricity of primer cavity and thread Level IV 3.3 AIE 104 Concentricity of flash hole and thread Level IV 3.3 AIE 105 Total Length Level IV 3.3 AIE 106 Flash hole obstructed Level IV 3.3 Visual 107 Chamfer missing from end of flash hole Level IV 3.3 Visual

Minor 201 Pitch diameter of thread Level II 3.3 AIE 202 Major diameter of thread, min Level II 3.3 AIE

203 Diameter of pilot, max Level II 3.3 AIE 204 Length of pilot Level II 3.3 AIE 205 Diameter of flash hole Level II 3.3 AIE 206 Depth of slot Level II 3.3 AIE 207 Width of slot, min Level II 3.3 AIE

Chamfer missing from bottom of primer cavity at mouth of flash hole Level II 3.3 Visual

209 Finish improper Level II 3.3 Visual 210 Evidence of poor workmanship Level II 3.3 Visual

Plunger

4.6.2.6 8861211-FW(Draft)

Classification Examination Or Test Conformance Criteria

Requirement Paragraph

Inspection Method

101 Total Length Level IV 3.3 AIE 102 Length to shoulder Level IV 3.3 AIE 103 Diameter and profile of firing point Level IV 3.3 AIE 104 Length of firing point Level IV 3.3 AIE

Minor 201 Large diameter Level II 3.3 AIE 202 Small diameter Level II 3.3 AIE

203 Radius or chamfer missing Level II 3.3 Visual 204 Finish improper Level II 3.3 Visual 205 Evidence of poor workmanship Level II 3.3 Visual

Ignition element assembly

4.6.2.7 8861199

Critical Total Length (over primer) max. Level VII 3.3 AIE

101 Primer missing or damaged Level IV 3.3 Visual

Seal missing or incomplete at joint between primer and cup sidewall Level IV 3.3 Visual

103 Primer inverted Level IV 3.3 Visual 104 Cellulose disk missing Level IV 3.3 See Note 1

Minor 201 Evidence of poor workmanship Level II 3.3 AIE

Note 1: Ignition element assemblies shall be either visually or automatically inspected 100% for the presence of the cellulose disk. Any sample which is found to have the disk missing inside the ignition element assembly shall be removed from the lot. Inspection may be performed immediately prior to inserting the primer or after the primer is inverted.

Container, charge assembly, prior to sealing closure

4.6.2.8 8861201

Classification Examination Or Test Conformance Criteria Requirement

Paragraph Inspection Method

101 Weight of charge, min. Level IV 3.3 AIE

Minor

Foreign matter in charge or on interior surface of container Level II 3.3 Visual

Container, charge assembly

4.6.2.9 8861201

Classification Examination Or Test Conformance Criteria

101 Closure assembly above flush Level IV 3.3 Visual 102 Closure disc ruptured Level IV 3.3 Visual

Minor

Closure assembly incompletely sealed (not 360 degrees) Level II 3.3 Visual

202 Evidence of poor workmanship Level II 3.14 Visual

Assembly, prior to inserting ignition element

4.6.2.10 8861197

Classification Examination Or Test Conformance Criteria

Major None defined

201 Foreign matter on interior surface Level II 3.14 Visual

Assembly, prior to assembling container charge assembly

4.6.2.11 8861197

Classification Examination Or Test Conformance Criteria

101 Ignition element assembly inverted Level IV 3.3 Visual

Lacquer missing between ignition element assembly and body Level IV 3.3 See Note 1

103 Depth of plunger, max Level IV 3.3 AIE Minor

202 Foreign matter on interior surface Level II 3.14 Visual Note 1: One sample shall be randomly withdrawn from each ½ hour accumulated production prior to insertion of the container charge assembly.

The ignition element assembly shall be unscrewed and extracted from the primer body for inspection. Failure to find evidence of lacquer on the ignition assembly seat or thread shall be cause for rejection of entire production run represented by the sample.

Assembly

4.6.2.12 8861197

Classification Examination Or Test Conformance Criteria

Critical Plunger above flush when it is touching ignition element Level VII 3.3 AIE

Major

101 Body and container joint seal incomplete Level IV 3.3 Visual

102 Container cup cracked or punctured Level IV 3.3 Visual

Container charge assembly below flush max. Level IV 3.3 AIE

104 Container charge assembly above flush Level IV 3.3 Visual Minor

201 Total length, max. Level II 3.3 AIE

Coating missing from container assembly (rear surface) Level II 3.3 Visual

203 Marking misleading or unidentifiable Level II 3.3 Visual 204 Evidence of poor workmanship Level II 3.14 Visual

Carton, packing, domestic

4.6.2.13 8796535

Classification Examination Or Test Conformance Criteria

101 Strapping missing, broken or loose Level IV 3.3 Visual-Manual

102 Board broken or split Level IV 3.3 Visual

103 Contents exposed Level IV 3.3 Visual Minor

201 Strapping improperly assembled Level II 3.3 Visual-Manual 202 Contents move when shaken Level II 3.3 Manual

Carton, packing, overseas

4.6.2.14 8796678

Classification Examination Or Test Conformance Criteria

Assembly damaged so that contents are exposed or liable to become exposed Level IV 3.3 Visual

Sealing strip incomplete, badly wrinkled, or not in contact with surface of box for at least ½ inch around entire box Level IV 3.3 Visual

Minor 201 Contents move when shaken Level II 3.3 Manual 202 Label missing (when applicable) Level II 3.3 Visual

Box, packing, overseas

4.6.2.15 8796679

Classification Examination Or Test Conformance Criteria

Hardware or strapping missing, broken or loose Level IV 3.3 Visual-Manual

102 Board broken or split Level IV 3.3 Visual

103 Contents exposed Level IV 3.3 Visual Minor

Hardware or strapping improperly assembled Level II 3.3 Visual-Manual

Car seal missing, unsealed or improperly positioned Level II 3.3 Visual-Manual

203 Handle missing or insecure Level II 3.3 Visual-Manual 204 Contents move when shaken Level II 3.3 Manual 205 Marking misleading or unidentifiable Level II 3.3 Visual

Foam Washer

4.6.2.16 WSHR001(Draft)

Classification Examination Or Test Conformance Criteria

101 Thickness of washer Level IV 3.3 AIE

102 Outside diameter Level IV 3.3 AIE

103 Inside diameter Level IV 3.3 AIE

104 Material Certification Level IV 3.3 Visual

Minor None defined

4.6.2.17 Packing and marking for box, fiberboard (Sealed Envelope)

DS000517(Draft)

Conformance

Next higher assembly

DS000516(Draft)

Classification Examination Or Test Criteria Paragraph Inspection method reference

Critical None defined

Waterproofness of bag destroyed by rip, tear, puncture, or separation of heat seal.

3.3 Visual

Heat Seal Test

Level IV 3.3 4.7.16

201 Barrier bag improperly marked, marking missing, or marking illegible

Level II 3.3 Visual

202 Evidence of poor workmanship Level II 3.10 Visual

Drawing number

4.6.2.18 Packing and marking for box, fiberboard (Fiberboard Box)

DS000517(Draft)

DS000516(Draft)

Classification Examination or Test Criteria Paragraph Inspection method reference

Critical None defined

Assembly damaged so that contents are exposed or liable to become exposed

5.1 Visual

Sealing strip incomplete, badly wrinkled or not in contact with surface of box for at least ½ inch around body

Level IV 5.1 Visual

103 Incorrect number of primers 100% 5.1 4.4.13

Minor

201 Contents move when shaken Level II 5.1 Visual

202 Evidence of poor workmanship Level II 3.10 Visual

Packing and marking for box, metal, ammunition, M2A1 (prior to closing)

4.6.2.19 DS000516(Draft)

DS000515(Draft)

Classification Examination or Test Criteria Paragraph Inspection Method Reference

Critical None defined

Major

101 Separator missing Level IV 5.1 Visual

102 Interior Dimensions Level IV 5.1 AIE

201 Evidence of poor workmanship Level II 3.10 Visual

4.6.2.20 Packing and marking for box, metal, ammunition, M2A1 (closed)

DS000516 (Draft)

DS000515(Draft)

Classification Examination or Test Criteria Paragraph Inspection method reference

Critical None defined

Major

101 Hardware improperly engaged Level IV 5.1 Visual

102 Box dented or deformed Level IV 5.1 Visual

103 Marking incomplete, misleading or unidentifiable

Level IV 5.1 Visual

104 Contents loose when box is tilted Level IV 5.1 Visual

105 Outside Dimensions (max) Level IV 5.1 AIE

201 Bare spot on exterior Level II 5.1 Visual

202 Metallic seal missing, unsealed or improperly positioned

Level II 5.1 Visual

203 Evidence of poor workmanship Level II 3.10 Visual

4.6.2.21 Packing and marking for box, wirebound

DS000515(Draft)

Classification Examination or Test Criteria Paragraph Inspection method reference

Critical None defined

DOT marking missing, incorrect, or illegible (when applicable) Contents loose when box is tilted

5.1

Wire missing, broken, or loose Wire improperly secured

Level IV Level IV

5.1 5.1

Visual/Manual Visual

105 Board broken or split Level IV 5.1 Visual 106 Outside Dimensions Level IV 5.1 AIE

Marking (other than DOT) incomplete, misleading or unidentifiable Metallic seal missing, unsealed or improperly positioned Evidence of poor workmanship

3.10

Visual

Visual

NOTES:

Unitization Procedures For Boxed Ammunition and Components on 4-Way Entry Pallets

4.6.2.22 19-48-4116/158G

Classification Examination Or Test Criteria Paragraph Inspection method reference

Critical None defined

DOT marking missing, incorrect, or illegible (when applicable) Skids missing, broken or loose Strapping missing, loose, engaged improperly or mislocated Boards broken or split full length Number of containers incorrect

5.2

Visual Visual Visual

Minor

Skids partially split Boards partially split Marking (other than DOT) incomplete, misleading or unidentifiable Evidence of poor workmanship

Level II

3.10

Visual Visual

NOTES:

Cup, Container

4.6.2.23 8861205

Classification Examination Or Test Conformance Criteria

101 Overall diameter Level IV 3.3 AIE

102 Inside radius Level IV 3.3 AIE 103 Front thickness Level IV 3.3 AIE 104 Sidewall minimum thickness Level IV 3.3 AIE 104 Outside length Level IV 3.3 AIE 105 Position of grooves Level IV 3.3 AIE 106 Depth of groove Level IV 3.3 AIE 107 Width of groove Level IV 3.3 AIE 108 Material Certification Level IV 3.3 AIE

Depth of vee-groove must extend over entire length of groove Level IV 3.3 Visual

The maximum width of the flat at the bottom of the vee-groove is not to exceed .005 Level IV 3.3 Visual

Minor None defined

4.7 Testing.

4.7.1 Nonfunctioning

4.7.1.1 A steel ball approximately 1-19/32 inches in diameter and weighing 16.34 plus or minus

0.02 ounces shall be dropped on the firing pin from a height of 1 ½ inches minimum. The drop height shall be measured as the distance between the bottom of the ball and the top of the firing Pin. Any primer assembly that fires shall be classified as defective.

4.7.1.2 Beginning with the first lot produced and continuing until three consecutive lots have complied with the acceptance criteria specified, a sample of 150 head assemblies shall be randomly selected from each lot for the test. If any sample fails to comply with the requirements the lot shall be rejected. The test shall be performed as specified in 4.7.1.1.

4.7.1.3 After three consecutive lots have met the criteria of 4.7.1.2, a sample of 50 head assemblies shall be randomly selected from each lot for this test. If one or more primers fails to comply with the applicable requirement, the lot shall be rejected. The test shall be performed as specified in 4.7.1.1. Primers subject to this test shall be destroyed.

4.7.2 Functioning

4.7.2.1 Without black powder charge

4.7.2.1.1 Beginning with the first lot produced and continuing until three consecutive lots have complied with the acceptance criteria specified, three hundred primers shall be selected from each lot for this test. If five or more primers fail to comply with the specified requirements the lot shall be rejected. If two, but less than five, defectives are found a second sample of 600 primers shall be tested. If the combined number of deficiencies in both the first and second sample is 5 or more the lot shall be rejected. The test shall be performed as specified in 4.7.3.

4.7.2.1.2 After three consecutive lots have met the criteria of 4.7.2.1.1, one hundred and twenty-five primers shall be selected from each subsequent production lot for this test. If 2 or more primers fail to comply with the specified requirement the lot shall be rejected. If only one defective is found, a second sample of 250 primers shall be tested. If the combined number of defective in both the first and second sample is 2 or more, the lot shall be rejected. The test shall be performed as specified in 4.7.3.

4.7.2.2 With black powder charge.

4.7.2.2.1 This test is required for ballistic first article only and shall be performed as specified in 4.7.4.

4.7.3 Static Test. The primer assembly less the black powder charge shall be tested as specified

4.4.1.1 except that the drop height shall be increased to 9 inches maximum. Any primer assembly that fails to fire shall be classed defective.

4.7.4 First Article Ballistic Test. The primers shall be assembled with a projectile and propelling charge system at a Government proving ground, and fired from a gun for which the primer is standard.

4.7.5 Modified Bruceton sensitivity test. Approximately two hundred (200) No. 34 primers shall be loaded into M82 primers without container charge assembly and tested as follows and the test result shall be submitted to the Technical Agency (see 6.11) for evaluation prior to loading of M82 primers:

4.7.5.1 50% point phase.

1. Set height to 5 inches and drop a steel ball with approximately 1 19/32 inches in diameter and weighing 16.34 plus or minus 0.02 ounces on a primer.

2. If primer fires, record result and lower height by ½ inch.

3. If primer does not fire, record result and raise height by ½ inch.

4. Repeat steps 2 and 3 until 8 reversals in direction of height adjustment between drops are performed. A reversal occurs whenever the height is adjusted in a direction opposite that of the previous adjustment.

4.7.5.2 No-fire phase.

1. Set height to ½ inch below the lowest fire which occurred during the 50% point phase.

2. If 5 consecutive primers do not fire, record results and raise height by ½ inch.

3. If any primer fires prior to the 5th consecutive no-fire at the set height, record the results and lower the height by ½ inch.

4. Repeat steps 2 and 3 until 5 reversals in direction of height adjustment are performed.

4.7.5.3 All-fire phase.

1. Set height to ½ inch above the highest no-fire which occurred during the 50% point phase.

2. If 5 consecutive primers fire, record results and lower height by ½ inch.

3. If any primer no-fires prior to the 5th consecutive fire at the set height, record the results and raise the height by ½ inch.

4. Repeat steps 2 and 3 until 5 reversals in direction of height adjustment are performed.

4.7.6 Moisture content of black powder. The moisture content of the black powder shall be determined in accordance with the procedure specified in Specification MIL-P-223. A sample of one container charge assembly, prior to assembly to the primer body shall be randomly selected from each eight hours production. The black powder shall be randomly selected from each eight hours production. Any failure to comply with the applicable requirement shall be cause for rejection of eight hours production represented by the sample.

4.7.7 Grade of powder (see dwg. 8861201). The contractor shall select approximately 100 grams of black powder from each container for this test. If any sample fails to comply with granulation requirement, the container form which it was taken shall not be used in the loading of the primers. The grade of black powder shall be determined as specified in Specification MIL-P-223.

4.7.8 Check test for deterioration (not applicable to new production). This test is intended to prevent the loading of major ammunition items with primers that have deteriorated. The tests shall be performed on primers from each lot which has been stored under normal conditions for more than two years, or under adverse conditions for any period of time. If the specification for the ammunition item into which the primers are loaded does not require performance of the check test, the contracting officer should insert a check test requirement in the contract.

4.7.9 Mercurous nitrate test. (see 3.6) 25 bodies shall be randomly selected for this test. If any sample fails to comply with the requirement the lot shall be rejected. The primer shall be tested in accordance with ASTM B154. Each body shall be examined for cracks.

4.7.10 Rupture Test (see dwg. 8861204). 110 container assemblies shall be randomly selected for this test, if any sample fails to comply with the requirement the lot shall be rejected.

4.7.11 Air Pressure Test (see dwg. 8861204). 150 container assemblies shall be randomly selected for this test. If two or more samples fail to comply with the requirement the lot shall be rejected.

4.7.12 Freedom from alkalies and strong acids. 3 sample containers from each four hours production shall be selected for this test. The container assemblies shall be tested in accordance with Specifications TT-C-490. If the limits specified herein have not been complied with, inspection for acceptance shall be stopped until corrective action has been taken. After corrective action, sampling shall be resumed as normal.

4.7.13 Freedom from oil and grease. 3 sample containers from each four hours production shall be selected for this test. The container assemblies shall be tested and action taken in accordance with specification TT-C-490.

4.7.14 Rockwell Hardness test (see dwg. 8861198). Ten bodies shall be randomly selected for this test;

if any sample fails to comply with the requirement the lot shall be rejected. The primer bodies shall be tested in accordance with ASTM E18.

4.7.15 Grain size test (see dwg. 8861198). Ten bodies shall be randomly selected for this test; if any sample fails to comply with the requirement the lot shall be rejected. Primer bodies used in this test shall not be returned to the lot. The primer bodies shall be tested in accordance with ASTM E112.

4.7.16 Heat Seal Test- The seals shall comply with the test specified in MIL-STD-2073, paragraph G.4.3.

4.7.17 Correct number of primers- The number of primers in each pack shall be verified 100%. This may be accomplished by any applicable approved method, such as visual inspection, weight, or x-ray.

5. PACKAGING

5.1 Packaging. The primers shall be packed and marked in accordance with drawing DS000515, DS000516 and DS000517.

5.2 Unitization. Boxes shall be unitized in accordance with drawing 19-48-4116/158G.

6. NOTES

(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)

6.1 Intended use. The components and assemblies covered by this specification are intended for use on all M82 series percussion primers.

6.2 Acquisition requirements. Acquisition documents must specify the following:

a. Title, number and date of this specification.

b. Packaging requirements (see 5 and 6.3).

c. Requirements for submission of first article sample.

d. Requirement for submission of acceptance inspection equipment.

e. Check Test for possible deterioration of M82 Primer.

f. Primer Qualification.

6.3 Packaging drawings. Drawings listed in this section are for reference only. The government's current packaging for the M82 Percussion Primers as defined by Technical Data Package (TDP) 8796535 and 8796679, is included for reference. The contractor may use the information contained in the TDP as guidance for its own design. If the contractor chooses to build to the current approved TDP (8796535 and 8796679) the Government will waive the testing required to meet the First Article performance test requirements of the packaging specification, except for Performance Oriented Packaging (POP) testing which is still required to transport hazardous materials in accordance with Code of Federal Regulations (CFR), Title 49. Unless otherwise noted, the custodian of the following drawings is the U.S. Army Armament Research, Development and Engineering Center, Picatinny Arsenal, NJ 07806-5000;

a. 8796535 Box, Packing, Ammunition, for Primers, Percussion-Electric M75 or Percussion M82.

b. 8796679 Box, Set-up, Packing, Ammunition, for Primers, Percussion-Electric M75 or Percussion M82.

6.4 Visual standards. Visual standards for evaluation of defects will be established for each contract after the first month’s production. However, establishment of visual standards will not waive the requirements for compliance with the requirements of the applicable drawing.

6.5 Check test for possible deterioration of M82 series artillery primers. The following tests are designed to prevent the loading of deteriorated artillery primers into a major ammunition item. The test should be performed on artillery primers from each lot which has been stored under normal conditions for more than three years or under adverse conditions for any period of time. If the specification for the ammunition item into which the artillery primers are loaded does not require that a check test be performed, the contracting officer should insert a provision for the performance of the check tests in the contract.

6.6 Nonfunctioning. The Sampling plan for the non-functioning test shall be in accordance with table III.

Any primer which fails to comply with the applicable requirement shall be classified as defective. The test shall be performed as specified in 4.7.1.

Table IV. Nonfunctioning Test Samples

*No acceptance on first or second sample.

6.7 Functioning. The sampling plan for this test shall be in accordance with table IV. Any primer which fails to comply with the applicable requirements shall be classed as defective. The test shall be performed as specified in 4.7.2.

Sample Sample size Combined Acceptance Rejection Sample Size Number Number First 20 20 * 2 Second 20 40 * 2 Third 20 60 0 2 Fourth 20 80 1 3 Fifth 20 100 1 3 Sixth 20 120 1 3 Seventh 20 140 2 3

Table V. Functioning Test Samples

*No acceptance on first or second sample

6.8 Moisture content of black powder. A sample of 25 primers shall be selected for this test. The black powder shall be removed from the flash tube by any suitable means. The moisture content of the powder should be determined in accordance with the method specified in Specification MIL-P-223. If the moisture content of any of the powder tested exceeds 0.7 percent, the lot of primers should be rejected. Since black powder is hygroscopic, it is advisable to place the powder in a dry, airtight container immediately upon removal, and to run the determination as soon as possible thereafter.

6.9 Cost of check test. The contracting officer will arrange for the contractor to be reimbursed for the expense incurred in the performance of the check test.

6.10 Metal parts separation. Missing metal from the lip area (mouth of the primer) is considered a “burned through” area and not metal parts separation provided that such an area is not greater than 1/4 –inch wide at the lip and does not extend more than 1/4 –inch back from the lip.

6.11 Modified Bruceton sensitivity test. All the modified Bruceton sensitivity test results shall be submitted to

Sample Sample size Combined Acceptance Rejection Sample Size Number Number First 75 75 * 2 Second 75 150 * 3 Third 75 225 0 3 Fourth 75 300 1 4 Fifth 75 375 2 5 Sixth 75 450 2 5 Seventh 75 525 4 5

Commander, ARDEC, ATTN: AMSTA-AR-QAT-P, Picatinny Arsenal, NJ 07806-5000 for evaluation prior to loading of M82 primers using a new lot of No. 34 primers. In order to expedite the evaluation of the new lot of No. 34 primers. In order to expedite the evaluation of the new lot of No. 34 primers, the test data should be Datafaxed to AMSTA-AR-QAT-P.

6.12 Lot formation. Allowance for two black powder lots is for the purpose to facilitate LAP when a black powder lot is depleted and a new lot is introduced.

6.13 Critical classification notes.

6.13.1 Total length (over primer) max. If the total length over primer exceeds the allowable maximum value, it will cause improper functioning of the primer. This is likely to cause injury or death to troops firing the howitzer.

6.13.2 Plunger above flush when it is touching ignition element. If the plunger is above the flush, it will cause unintended initiation of the primer which can cause injury or death to troops firing the howitzer.

6.14 Acceptance Inspection Equipment (AIE). Any measuring device that is traceable to the national or international standard used to assure conformance of material to the contract requirements.

6.15 Subject term (key word) listing.

Artillery Cartridge Check Test

Custodian Preparing activity Army-AR Army-AR

(Project#)

NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https://assist.dla.mil.