Spec Data-Waist Plate--MIL-DTL-20269F.pdf

AMSC NA FSC 8315

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.

Comments, suggestions or questions on this document should be addressed to (DLA-Troop

Support, Standardization Office, 700 Robbins Avenue, Philadelphia, Pa 19111-5092). Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https:assist.dla.mil.

INCH-POUND

MIL-DTL-20269F (MC)

October 9, 2019

SUPERSEDING

MIL-B-20269E (MC)

November 26, 1990

DETAIL 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 SNCO

Type II - Buckle, Plain

Type III- Buckle, Insignia NCO

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 cited 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 specified requirements of documents cited in section 3 and 4 of this specification. Whether or not they are listed.

2.1 Government documents.

MIL-DTL-20269F (MC)

2.1.1 Specifications, Standards and handbooks. The following Government document forms a part of this specification to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation or contract.

DEPARTMENT OF DEFENSE SPECIFICATIONS

FEDERAL

ASTM E1282 - Standard Guide for Specifying the Chemical

Composition and Selecting Sampling Practices and

Quantitative Analysis for Metals, Ores and Related

Materials.

U.S. Army standard metal finish chip set

- The Institute of Heraldry, standard color chips(s)

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 are those cited in the solicitation or contract.

ASTM Test Methods

Copies of documents are available online at https://www.astm.org or from ASTM International, 100

Barr Harbor Drive, West Conshohocken, PA 19428-2959.

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 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).

3.2 Design. The buckles shall be the Marine Corps design shown on Figures 1,2 and 3. 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 belt and two belt keepers. As an alternate to the design shown on Figures

1,2 and 3, the integral female catch may be made with 1/8-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 and III buckle shall be true impressions of the dies extracted from the hub furnished by the Government.

3.3 Materials.

3.3.1 Copper base alloys. 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.

3.3.1.1 Gold plating. The buckle shall be gold plated using 24 karat gold.

3.3.2 Hard solder. Hard solder shall be a nonferrous alloy having a melting point of not less than

1,075°F.

3.3.3 Plating. All plating shall be by electroplating methods. The plating shall be continuous and unbroken over the entire plated surface. Plating of attaching devices will not be required.

When tested as specified in 4.5.4, no visible chemical reaction such as evolution of gasses shall appear.

3.3.4 Hubs, Dies and Tools. A hub for type I and III 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 be 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 otherwise 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.

3.4 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 3. 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.

3.4.1 Soldering. Soldered parts shall be completely joined without excess solder. All 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.

3.4.2 Finish. The outer surfaces and edges of the front plate and female catch and all surfaces and outer edges of keepers shall be gold plated and match TIOH chip no. 6. Component parts of the buckles shall be acid dipped to produce a uniform gold color to approximate the chip no.6 shade and shall be free from scale. All corner and edges shall be slightly rounded, but not excessively rounded of 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.

3.5 Workmanship. The finished buckles shall conform to the quality of product established by this specification.

4. VERIFICATION

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

a. First article inspection (see 4.4).

b. Conformance inspection. Conformance inspection shall include the examination and tests specified in 4.5.1.

4.2 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.

4.3 Certificate of compliance. Where certificates of compliance are permitted, the Government reserves the right to check test such items to determine the validity of the certification.

4.4 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 determinations 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 and melting point. 3.3.2

4.5. Examination of end item. The end item shall be examined for the defects listed in 4.5.2.1.

4.5.1 General defects. General defects shall be classified as follows:

TABLE I. Defects.

Examine Defect Classification

Major Minor

A B

Color and finish

a. Does not match with TIOH metal finish chip set No.6

Classification.

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

c. Abraded, scuffed, scratched or otherwise damaged. 201

d. Stain or discoloration clearly noticeable. 202

e. Buff drag or cloudy finish, clearly noticeable. 301

f. Segregations or foreign inclusions in the metal. 203

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

b. Any significant detail of the insignia reduced or obliterated. 104

Type Not type specified. 105

Examine

Defect Classification

Major Minor

A B

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

Construction and workmanship

Examine

Construction and workmanship

a. Metal cranked or fractured. 204

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

Defect

c. Any detail struck over, resulting in double impression.

d. Burr, fin, rough or sharp edge, drag or step. 205

e. Dent, pit, dig, gouge, nick, mark or mutilation. 206

f. Any component missing, damaged, malformed, bent, or otherwise defective, affecting appearance or serviceability.

g. Any corner or edge not slightly rounded or excessively rounded.

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

i. Any solder spatter or discoloration on edge. 208

j. Any solder spatter or discoloration on back of buckle exceeding 3/16 inch.

k. Any area burned or reduced in soldering or acid cleaning clearly noticeable or flux not removed.

4.5.2 Examination for dimensions. Any dimension that is not within the tolerances specified herein shall be classified as a defect.

4.5.3 Testing of the end item. Testing of the completely fabricated 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.

Table II. End item testing

Characteristic Rqmt. para Test method

Test for soldered joints 3.6.1 4.6.1

Golding plating 3.3.1

Pass/fail

4.6.2

4.5.4 Acid Test For Gold. The test acid shall be applied as follows: place a drop of acid of not less than 1/16 inch (0.16 cm) in diameter on three (3) different spots on the plated surface allowing the drops to remain for not less than one (1)minute during which time the surface of the item shall be inspected to determine compliance with the requirements in 3.3.3, no visible chemical reactions shall occur. Acid drops to be placed at surfaces on the obverse and reverse face when possible. A minimum of two spots must withstand the acid test. The acid test shall be applied at room temperature (60 to 80 degrees Fahrenheit/15.6 to 26.7 degrees Celsius) and shall consist of a solution containing 50 percent by volume of chemically pure nitric acid (specific gravity 1.42).

4.5.5 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.

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 accordance with

Test Method ASTM E1282. Results shall be evaluated to determine compliance with the requirements specified in 3.3.1.

5. PACKAGING

5.1 Packaging. Packaging shall be level A or commercial as specified (see 6.2).

5.1.1 Level A. Each buckle, with female catch and keepers, placed at the back of the buckle, shall be individually enclosed and heat sealed in a clear polyethylene bag having a thickness of

0.00125 (plus or minus 25%) inches and placed within a set up paperboard box 3-3/4 by 2-1/2 by 1 inches, outside dimensions, conforming to ppp-b-676, type I, variety 1, class a style 4. Closure shall be in accordance with appendix to the box specification. As 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 manufactures commercial practice to ensure safe delivery at destination.

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

5.3 Marking. 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)

6.4 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.

6.6 Figures. Figures 1, 2 and 3 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 Subject term (Key word) listing.

Dress blue

Enlisted

Staff NCO

Custodians: Preparing Activity:

Navy - MC DLA-CT

(Project 8315-2020-001)

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.

https://assist.dla.mil/

FIGURE I Buckle: (Insignia)

FIGURE II Buckle: (Plain)