Spec_Data__Waist_Plate__MIL_B_20269E_(MC).pdf

MIL-B-20269E(MC)

;:6 NOVEMBEA 1990

SUPERCEDING

MIL-B-20269D(MC)

28 January 1983

MILITARY SPECIFICATION

BUCKLES: INSIGNIA AND PLAIN

This specification is approved for use by U.S.Marine Corps, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense.

1. SCOPE

1.1 Scope. This specification covers requirements for brass

buckles for personnel of the U.S. Marine Corps.

1.2 Classification. The buckle shall be of the following types, as specified (see 6.2).

Type I - Buckle, Insignia Type II - Buckle, Plain

2. APPLICABLE DOCUMENTS

2.1 Government documents.

2.1.1 Specifications , standards , and handbooks. Unless

otherwise specified, the following specifications, standards? and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein.

Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to the Commanding General (PSE-C), Marine Corps Research, Development, and Acquisition Command, Washington, DC 20380, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter.

AMSC-NA FSC 8315

DISTRIBUTION STATEMENT A. Approved for public release; distribu-tion is unlimited.

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MIL-B-20269E(MC) —

SPECIFICATIONS

FEDERAL

PPP-B-676

MILITARY

MIL-B-17757

- Box, Set-up.

- Box, Shipping, Fiberboard (Modular Sizes)

STANDARDS

FEDEIUL

FED-STD-151 - Metal, Test Methods.

MILITARY

MIL-STD-105 - Sampling Procedures And Tables For Inspection By Attributes.

MIL-STD-129 - Marking For Shipment And Storage

(Unless otherwise indicated, copies of federal and military specifications and standards are available from the Standardization Documents Order Desk, Building 4D, 700” Robbins Avenue, Philadel-phia, PA 19111-5094)

2.1.2 Other Government documents and publications. The following Government document forms a part of this specification to the extent specified herein. Unless othemise specified, the issues are those cited in

(Application for Superintendent of Washington, D. C.

the solicitation.

LAWS AND REGULATIONS

U.S. Postal Service Manual copies of the manual should be addressed to the Documents, U. S. Government Printing Office, 20402.)

2.2 Non-Government publications . The following documents form a part of this specification to the extent specified herein.

Unless otherwise specified, the issues of the documents which are DOD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the solicitation.

UNIFORM CLASSIFICATION COMMITTEE, AGENT

Uniform Freight Classification Rules

(Application for copies should be addressed to the Uniform

Classification Committee, Room 1106, 222 South Riverside Plaza, Chicago, Illinois 60606.)

NATIONAL MOTOR FREIGHT TRAFFIC ASSOCIATION, INC., AGENT

National Motor Freight Classification

(Application for copies should be addressed to the American Trucking Association, Inc., Tariff Order Section, 1616 P. Street, N.W., Washington, D. C. 20026.)

(Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These douments also may be available in or through libraries or other informational senices. )

2.3 Order of Precedence. In the event of a conflict between

the text of this specification and the references cited herein, the text of this specification shall take precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. REQUIREMENTS

3.1 Standard sam~le. Standard samples are furnished solely for guidance and information to the contractor (see 6.3). Variation from this specification may appear in the sample, in which case the specification shall govern.

3.2 First article. When specified (see 6.2), the contractor

shall furnish sample unit(s) for first article inspection and approval (see 4.4 and 6.4).

3.3 Materials.

3.3.1 cop per base allovs. When tested as specified in 4.6.2, the chemical composition of the copper base alloy from which the buckles, male catch, female catch, and keepers are stamped shall be 84.0 to 86.0 percent copper, 0.05 percent maximum lead, 0.05 percent maximum iron, 0.15 percent maximum total other elements and the remaining percent zinc. The copper base alloys shall be free from pits, scale (including red oxide), dents, nicks, cracks, deep scratches, segregations, and foreign inclusions which cannot be removed in later processing.

3.3.2 Hard solder. Hard solder shall be a nonferrous alloy

having a melting point of not less than 1,075”F.

3.4 Desiqn. The buckles shall be the Marine Corps design shown on Figures 1 and 2. Each buckle shall consist of a front plate with a male catch soldered to the back, a female catch to be attached to the end of the the belt and two belt keepers. As an alternate to the design shown on Figures 1 and 2, the integral female catch may be made with l/8-inch diameter wire or rod of material specified in 3.3.1 hard soldered on the back at each square corner of the female catch. Each soldered end shall be located 1/16 inch maximum from the side edge of the female catch.

When this alternate female catch is used, the inside opening shall be 13/32 inch wide and 1-7/8 inches long. The stamped design of the front plate for type I buckle shall be true impressions of the dies extracted from the hub furnished by the Government.

3.5 Hubs , dies and tools. A hub for type I buckle will be

loaned to the contractor by the Government. The Government furnished hub shall be used only for making the contractor’s working dies. Upon completion of contract, the hub shall k returned to a point designated by the contracting officer. The contractor shall be held responsible for the loss, damage, or mutilation of the hub while in his possession. Determination of cost of replacing the lost, broken, or damaged hub shall be made by the Government. Dies and tools shall be furnished by the supplier and, unless othemise specified, shall remain his property. The contractor’s dies shall be tooled and polished to remove any dents, nicks, scratches, or other imperfections. No alterations to the design shall be permitted.

3.6 Construction. Buckles shall be made of the materials

specified herein and shall be constructed to include the components and construction details specified herein and as shown on Figures 1 and 2. A forcer shall be permitted to bring up the Marine Corps design and there shall be no sharp or rough edges or corners. The impression of the forcer shall be regular and symmetrical upon the back of the front plate.

3.6.1 Solderinq. Soldered parts shall be completely joined

without excess solder. Ml flux shall be removed, and the joint shall be clean, smooth, and strong without burned or reduced areas.

The soldered joint shall withstand the test specified in 4.6.1.

3.6.2 Finish. Finished buckles shall match an approved sample for color and finish. All component parts of the buckles shall be acid dipped to produce a uniform gold color free from scale. The outer surfaces and edges of the front plate and female catch and all surfaces and outer edges of the keepers shall be highly

MIL-E-20269E(MC)

polished to a mirror-like finish free from dents~ nicks~ and scratches . All corners and edges shall be slightly rounded.

However, such finishings shall not be carried to the point where edges are excessively rounded or details of design fail to meet the requirements specified herein. All other surfaces and edges shall be clean, smooth, and free from burrs, drag, step, tool marks , sharp edges and corners, and roughness.

3.7 workmanship. The finished buckles shall conform to the quality of product established by this specification.

4. QUALITY ASSURANCE PROVISIONS

4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as othemise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the govern-ment. The government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and semices conform to prescribed requirements.

4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractor’s overall inspection system or quality program. The absence of any inspec-tion requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements. This does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material.

4.1.2 Certificate of compliance. Where certificates of

compliance are permitted, the Government resenes the right to check test such items to determine the validity of the certifica-tion.

4.2 Classification of inspection. The inspection requirements specified herein are classified as follows:

a. First article inspection (see 4.4).

b. Quality conformance inspection (see 4.5).

4.3 Inspection conditions. Inspections shall be in accordance with the provisions set forth in MIL-STD-105, except where otherwise indicated herein.

4.4 First article inspection. When first article is required, inspection shall be made of a completely fabricated buckle for conformance to all provisions of this specification.

4.5 Quality conformance inspection.

4.5.1 Component and material inspection. Testing shall be

performed on the copper base alloy specified in 3.3.1 for chemical composition. The lot shall be expressed in terms of 1 pound and the requirement shall be applicable to lot average with two determina-tions for each element. The results shall be reported to the nearest 0.1 percent. The sample unit shall be 8 ounces or equivalent of a composite sample. Components and materials listed below may be accepted on the basis of a contractor’s certification of compliance for characteristics shown.

Component Characteristics Rqmt . Para.

Hard solder Material identification 3.3.2 and melting point.

4.5.2 Examination of end item. The end item shall be examined for the defects listed in 4.5.2.1 and 4.5.2.2. The sample unit shall be one buckle of each type. The inspection level shall be II (see 6.5).

4.5.2.1 General defects. General defects shall be classified

as follows:

Examine

Color and finish

Design

Type

Quality metal of

Construc-tion and workmanship

Defect a.

b.

c.

d.

e.

f.

a.

b.

a.

b.

c.

d.

Does not compare favorably with standard or approved sample.

Outer surfaces and edges of the front plate and female catch or surfaces and outer edges of the keepers not mirror-like finish.

Abraded, scuffed, scratched or othemise damaged.

Stain or discoloration clearly noticeable.

Buff drag or cloudy finish, clearly noticeable.

all

Segregations or foreign inclusions in the metal.

Type I buckle insignia design details are altered and do not conform to Government hub.

my significant detail of the insignia reduced or obliterated.

Not type specified.

Surface spotted or open grained, i.e., pitted, porous crystalline.

Metal cracked or fractured.

Any warp, twist, or distortion producing irregular surface contour or outline.

-y detail struck over, resulting in double impression.

Burr, fin, rough or sharp edge, drag or step.

classification

Minor A

Examine

Construc-tion and workmanship

Defect e.

f.

9“ h.

k.

Dent, pit, dig, gouge, nick, mark or mutilitation.

Any component missing, damaged, malformed, bent, or otherwise defective, affect-ing appearance or service-ability.

my corner or edge not slight-ly rounded or excessively rounded.

Soldered parts not completely joined i.e., any perceptible opening in joint.

Any solder spatter or discolor ation on edge.

Any solder spatter or discolor ation on back of buckle exceeding 3/16 inch.

-y area burned or reduced in soldering or acid cleaning clearly noticeable or flux not removed.

classification MinorMa “or

A

Q

4.5.2.2 Examination for dimensions. my dimension that is not

within the tolerances specified herein shall be classified as a defect. The inspection level shall be S-2 (see 6.5).

4.5.3 Testinq of the end item. Testing of the completely fabri-cated buckle shall be performed in accordance with Table I for the characteristics shown therein. There shall be one determination per sample unit and the results shall be reported as pass or fail. The sample unit shall be one buckle (front plate, female catch and keeper ) of each type. The requirements are applicable to the individual unit. The inspection level shall be S-1 (see 6.5).

Table I - End item testing

Characteristic Rqmt. para. Test method

Test for soldered joints 3.6.1 4.6.1

4.5.4 Examination of Preparation for deliverv requirements. An examination shall be made to determine compliance with packaging, packing and marking requirements in Section 5. Defects shall be scored in accordance with the list below. The sample unit shall be one shipping container fully prepared for delivery with the exception that it need not be sealed. Defects of closure listed below shall be examined on shipping containers fully prepared for delivery. The lot size shall be the number of shipping containers in the end item inspection lot. The inspection level shall be S-2 (see 6.5).

Examine Defect

Markings (exterior Omitted, incorrect, illegible, of improper size, and interior) location, sequence or method of application.

Materials Any component missing. Any component damaged, affecting serviceability.

Worlunanship Inadequate application of components, such as incomplete closure of case liners, container flaps, loose strapping, inadequate stapling. Bulging or distortion of containers.

Weight of content Number of intermediate containers is more (exterior and or less than required; gross/net weight interior) exceeds requirements.

4.5.3.1 Examination for count of buckles in intermediate containers.

Buckles packaged for shipment shall be examined to determine conformance with package markings and specified quantity. The sample unit for this examination shall be one box (interior package) . Any box containing less than the specified or marked quantity of buckles shall be classified as a defect. The inspection level shall be S-2 (see 6.5).

4.6 Tests.

4.6.1 Test for soldered joints. Buckles, and female catch when alternate is used, to be tested shall be placed in an oven maintained at 1,075°F +,_ 10°F for not less than 15 minutes. While at the specified temperature, the buckle shall be lifted by the male catch, and the alternate female catch by the wire or rod, without the soldered parts separating.

4.6.2 Chemical composition test. Chemical composition shall be determined in acordance with Test Method 111 of FED-5TD-151. Results shall be evaluated to determine compliance with the requirements specified in 3.3.1.

5. PACKAGING

5.1 Packa~inq. Packaging shall be level A or commercial as

specified (see 6.2).

5.1.1 Level A. Each buckle, with female catch and keepers, shall be enclosed in a heat sealed clear polyethylene bag having a minimum thickness of 0.00125 inches and placed within a set up paper board box 3 3/4 X 2 1/2 X 1 inches conforming to PPP-B- 676, type I, variety 1, class A, style 4. . Closure shall be in accordance with the appendix to the box specification. M an alternate to the polyethylene bag, the pieces may be individually wrapped in anti-tarnish tissue paper and placed in the box above.

5.1.2 Commercial. The buckles shall be packaged in accordance with manufacturer’s commercial practice to ensure safe delivery at destination.

5.2 Packing. Packing shall be level B or commercial as specified (see 6.2).

5.2.1 Level B. One hundred and twenty-six (126) buckles of one type only, packaged as specified in 5.1, shall be packed in a fiberboard shipping container conforming to class-domestic, variety I)W, grade 275, size No. 1 of MIL-B-17757 and assembled, closed and reinforced as specified in the appendix thereto. Fill all excess voids to prevent movement,

5.2.2 Commercial. Buckles, packaged as specified in 5.1, shall be packed in a manner to insure carrier acceptance and safe delivery at destination. Containers shall be in accordance with U.S. Postal Service Manual, Uniform Classification Rules, National Motor Freight Classification or regulations of others carriers applicable to the mode of transportation.

5.3 Markinq. In addition to any special marking required by the contract or order, the interior and exterior containers shall be marked in accordance with the requirements of MIL-STD-129.

6. NOTES

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

6.1 Intended use. The buckles are intended for use by enlisted personnel with the white web belt worn on the blue gabardine coat.

6.2 Acquisition requirements. Acquisition documents must specify the following:

(a) Title, number and date of this specification.

(b) Type required (see 1.2).

(c) Whether first article is required (see 3.2).

(d) Level of packaging and packing required (see 5.1 and

5.2).

(e) Acceptance criteria required (see 6.5)

6.3 Standard Sample. For information regarding the availability of sample buckles, address inquiry to the procuring activity issuing the invitation for bids.

6.4 First article. When a first article is required, it shall be inspected and approved under the appropriate provisions of FAR

52.209. The first article should be a preproduction sample. The contracting officer should specify the appropriate type of first article and the number of units to be furnished. The contracting officer should also include specific instructions in acquisition documents regarding arranging for selection, inspection, and approval of the first article.

6.5 Acceptance criteria. The acceptance criteria below are

recommended for use. The acceptance criteria as specified in the contract or purchase order shall be binding. Unless otherwise specifed, the following acceptance criteria are in accordance with

MIL-STD-105 .

6.5.1 ComRonent and material inspection. An acceptance quality level (AQL) expressed in terms of defects per hundred units (DHUS) of 4.0 is recommended.

6.5.2 For end item visual examination. An acceptance quality

level (AQL), expressed in terms of DHUS of 2.5 for major defects,

6.5 for major and minor A combined and 10 for major, minor A and B combined is recommended.

6.5.3. For end item dimensional examination. An AQL, expressed in terms of DHUS of 6.5 is recommended.

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6.5.4 Testinq of the end item. An AQL, expressed in terms DHUS of 6.5 is recommended.

6.5.5 For packaqinq examination. An AQL, expressed in terms of DHUS of 4.0 is recommended.

6.5.6 For count in container. An AQL expressed in terms of DHUS of 2.5 is recommended.

6.6 Fiqures. Figures 1 and 2 are furnished for information

purposes only. To the extent of any inconsistencies between the written specification and the figure, the written specification shall govern.

6.7 Sub5ect term (Key wordl listinc7.

Dress blue Enlisted Staff NCO

6.8 ChanQes from Previous issues. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extensiveness of the changes.

Preparing activity:

Navy - MC Project No. 8315-N354

CATCH

SOLD

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269 E(Mc)

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TOLERANCE:

DECIMALS +.003 !

NOTE:

N

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RAISED EDGES

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FIGURE1. BUCKLE: (INSIGNIA)

MIL-3-20269E(A4C)

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7 R.4

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DECIMALS +.003

,“’ANDUNDER+Y6;

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NOTE:

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RoUNDED t=

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KEEPER- (2 REQUIRED)

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FIGUREZ.BUCKLE: (PLAIN )

1 STANDARDIZATION DOCUMENT IMPROVEMENT PROPOSAL

INSTRUCTIO!J5

~ Trler3repar; n~ JCTI . Iy TIU<T comr’,et~ oic)~:ks 1, 2, 3, dnc 8 ~ !loc~ 1, :>c)it~IPP cocumenl number and revlslor

3. The preparing ~CTIVty mus: proviac J rcp:y wlthln 30days fro,m receipt of the form

NOTE: This form may not be used to request copies of documents, nor to reques~ waivers, or clarification of re~uirements on Curren[ contrdcts. Comments Subrrlltlecl on thfs iorfm do nol con5tltule or Impiy aut~orizatlon10 waive any portion of The referenced ~ocument(s) or 10 amend con?r~ctuai requirements.

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4. NATURE OF CHANGE (l~~nfl~ p~r~gra~h nurTT&r JrIU Ir)c/uu(I pfOpO$~d /~wr/tI?, I? poss)bk’ Atrach eflrd 5heer5 a5 neeued. ) i REASON FOR RECOMMENDATION

8. PREPARING ACTIVITY—

a. NAME b TELEPHONE (/nc/ude Area Code) Corrumnding General, Marine Corps Research, (1) Commefclal (2) AUTOVON velop[wr]~, and Acqui siticm Cum~and ( psE~ ) I ( 20L ) ~$x5-]186/87/88 226-1186/87/88

I~. ADDRESS (/nc/ude Zip Code) IF YOU 00 NOT RECEIVE A REPLY WITHIN 45 DAYS. CONTACT:

Defense Quailty and Standardization OfflCe

‘ Washington ( Ix 2038(3-C031 5203 Leesburg Pike, Suite 1403, Falls Church, VA 22041-3466

Telephone (703) 756-2340 AUTOVON 289-2340