1、MIL-L-qbb75B 13 m 777770b 03LLi022 7 m I CCT.,ITARy SPECIFICATION MIL-L-46675B 2 September i976 SUPERSEDING MIL-L-46675A 22 September 1972 LINK, CARTRIDGE: METALLIC BELT, CMBER .30, MI This specification is approved for use by all Departments and Agencies of the Department of Defense, 1. SCOPE. 1.1
2、Scope. !Phis specification covers one type of metallic belt link intended to hold caliber .3O ammunition in the form of flexible belts for use in caliber .3O machine guns. * 2. APPLICABLE DOCUMENTS 2.1 Issues of documents. The folluwing documents, of the issue in effect on date of invitation for bid
3、s or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS Military MIL-P-116 MIL-W- i385 5 - MIL-1-45607 - STANDARDS Federal Fed. Std. - No. 356 MIL-STD-105 - MIL-sm-log - DRAWINGS Rock Island Arsenal .D5559722 - Preservation-Packaging , Methods of W
4、eapons: Small Arms and Aircraft Armament Subsystems, General Speci- fication for Inspection .Equtpent, Acquisition, Maintenance and Disposition of Ccamnercial Packaging of Supplies and Equipnent Sampling Procedures and Tables for Inspection by Attributes Quality Assurance Terms and Definitions Link,
5、 Cartridge, Metallic Belt, Caliber .30, Mi. FSC 1305 F Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-4bb75B 13 H 797770b 0314023 7 = MIL-L-46675B PITBLICATIONS Rock Island Arsenal p5559722 - Packaging Data Sheet for Link, Car- tridge, Metalli
6、c Belt, Cal. .30, Ml. IEL5559722 - Index of Inspection Equipment Lists, Link, Metallic Belt Cal. 30, Ml (Acceptance Inspection Drawings referenced in this specification form a part of IEL555g(22.) (Copies of specifications, standards, drawings and publications required by contractors in connection w
7、ith specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. ) 2.2 Other publications. The following documents form a part of this specification to the extent swcified herein. indicated, the issue in effect on date of invitation for bid
8、s or request for proposal shall apply. Unless otherwise American Society for Testing and Material (ASTM) ASTM E18 - Standard Methods of Test for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials (Applications for copies should be addressed to the American Society for Testing
9、and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103) 3. REQUIREMENTS 3.1 First article. Requirements for submission of first article shall be as specified in the contract (see 6.1). fied (see 6.1) the first article shall include a pilot pack (see 5.1). Unless otherwise speci- 3.2 Mater
10、ial, construction and design. The links shall conform to the material, construction and design requirements specified herein, on Drawing DS559722 and in MIL-W-13855. 3.2.1 Elongation. Links shall withstand a tensile load of 35 -t 0.5 pounds and the total elongation of the pitch dimension after remov
11、al of the load shall not exceed 0.008 inch permanent set. specified in 4.5.3.5. Testing shall be as 3.2.2 Cartridge extraction. The force required to extract a steel plug of minimum cartridge size from the links shall be not less than 5 kure D7190100. 4.6.3 Decarburization test. The cross section of
12、 the sample links shall be polished, etched with a 2 to 5 percent nital solution and examined under a microscope of not less than 500 power to determine compliance with decarburization requirements on Drawing D5559722. 4.6.4 Elongation test. The sample links shall be tested using inspection equipmen
13、t in accordance with Drawing D7lWlkO. be placed on the mandrels of the fixture, the indicator gage set to zero, and the load specified applied. The load shall then be removed from the link and the indicator gage used to determine whether compliance has been met. scrapped. Links shall At the completi
14、on of this test the sample links shall be 4.6.5 Cartridge extraction test. The sample links shall be tested using the inspection equipment specified on Drawing 6516202 shall be placed in the holding fixture and the steel plug inserted in the link to the depth of 2.248 inches + .O30 inch. be graduall
15、y applied until the plug is extracted from the link. Links The load shall then Jc 4.6.6 Assembleability and free hinging test. Sample links shall be tested by assembling the links into a 100 round belt using Government standard caliber .3O dummy cartridges. horizontally to its full length and one en
16、d drawn back and forth over the remainder of the belt to test for free hinging. hinging, the belt shall be disassembled. During assembly and disassembly operations the cartridges shall be visually examined for evidence of scratching or shaving resulting in the removal of metal. The belt shall then b
17、e laid out After kesting for free 4.6.7 Detemination of cleanliness test. The links shall be tested for cleanliness requirements using IJIL-P-. 4.5.8 Functioning test. A sample of 100 links taken from the first article shall be tested by the testing agency for functioning require- ment (see 3.2.4) b
18、y assembling into a 100 round belt with Government standard caliber .3O ball cartridges and firing the belt in an approved caliber .30 machine gun. Firing shall be in bursts of 10 to 20 rounds each. 5. PACKAGING 5.1 Pilot pack. A pilot pack shall consist of links preserved in accordance with Packagi
19、ng Data Sheet P5559722 for the level of protection specified in the contract (see 6.1), packed level B and forwarded as specified in the contract (see 3.1). I I I 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-L-4bh75B 13 77777Ob 0334030 b M
20、IL-L -46675 5.2 Levels A and B. Preservation, packing and marking shall be in accordance with Packaging Data Sheet P5559722 for the level of protection specified in the contract (see 6.1) 5.3 Commercial packaging. Preservation, packing and marking shall be in accordance with Fed o SM. No. 356. 6. NO
21、TES 6.1 Ordering data. Procurement documents should specify the following: 6.1, i Procurement requirements : a. Title, number and date of this specification. b. List of drawings, publications and specifications per- tinent to the link, shoving applicable revision dates. c. Requirements for submissio
22、n of first article and pilot pack (see 3.1, 4.4 and 5.1). . Responsibilities for acquisition, maintenance and dispo- sition of acceptance inspection equipment, if other than specified (see 4.5.4.). Responsibility for furnishing dmy cartridges. Selection of applicable levels of protection (A or B), o
23、r commercial packaging (5.1, 5.2 and 5.3). e. f. 6.1,2 Contract data requirements. When warranted, requirements for reports of the results of examination and testing should be specified on a DD Form i423 included in the contract. 6.2 Management control system requirements. When warranted, the contra
24、ct should specify the application of MIL-Q-958 or MIL-1-45208 on the Management Control Systems Summary List, DD Form 1660, 6.3 Unless otherwise specified (see 6.1) the contract should spec- ify the application of MIL-1-45607 on the Management Control Systems Summary List, DD Form 1660. 6.4 The marg
25、ins of this specification are marked with an asterisk to indicate where changes (additions, modifications, corrections, dele- tions) from-the previous issue were made. only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are caution
26、ed to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. This was done as a convenience 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL -L -
27、46675 Custodian: Army - WC Air Force - 99 Review Activity: Army - Mu Preparing Activity: Army - wc Project Number : J-305-0736 User Activity: Navy - AS I. U. S. GOVERNMENT PRINTING OFFICE I976 .3-766/69Q5 10 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
