1、$47- 023 MILF-45939 19 Novkber 1971 SUPWSEDIG (See Section 6) MILITARY SPECIFICATION FEED=, AUTOMATIC GIBT: MU-57A/A This specification is mandatory for use by all Departments and Agencies of the Department of Defense. 1, SCOPE 1.1 This specification covers one type of machinegun driven feed mechani
2、am for use on the 7.62 millimeter (um) aircraft machinegun pods m8, ML8A1, SUUIU/A and SVV-lI.B/A to convey ammunition from the exit un%t assembly into the machingun. The feeder includes a solenoid operated mechanism for guiding the rounds Bither into the machinegun or into the ejection chute, 2.1 T
3、he following documents, of the issue in effect on date of in- vitation for bids or request for to the extent specified hein. SPECIFICATIONS Military FEZFXi6 MIL-1-45607 ML-L-46x50 STANMUX Military -105 MIESTD-iog proposal, form a part of the specification Preservation, Methods of. Weapons: Small Arm
4、s and Aircraft Armament Subsystem, General Specification for. Inspection Equipment, Acquisition, bin- tenance and Disposition of. Lubricating Oil, Semi-Fluid (Autometic Weapons) Sampling Procedures and Tables for In- apect5on by AtbibUtes * Quawy Assurance Terms and Definitions. THIS DOCUMENT CONTAI
5、NS PAC inspection equipment drawings form a part of Drawing IEL-63E3.0919. ) PUBLICATIONS U.S, Arw Weapons Command P63E10919 - Packaging Data Sheet fm Feeder, Am- munition. (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement
6、Functions should be obtained for the procuring activity or as directed by the contracting officer . ) 3.1 First article. Requirement for submission of first article samples shall be as specified in the contract (see 6.1). Samples shall be a representative of material which has been inspected and det
7、ermined acceptable. One of the feeders shall be considered the pilot pack (see 5.1). 3.2 en$ion helical spring. The extension helical spring shall The spring shall retain the sliding 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.3.17 Identifica
8、tion plate. The identification plate shall be securely attached to the feeder housing as specified on the applicable drawing. 3.3.18 Lubrication, The needle bearings and the gear teeth shall be lubricated with lubricant conforming to MIL-L-46x50. shall be coated with the preservative oil specified o
9、n the applicable drawings. solvents during cleaning operations. All other surfaces All bearings shall be potected against contamination by cleaning 3.3.3.9 Solenoid dielectric withstailding voltage. Solenoids shall withstand 590 to MX) volts root mean square at a frequency of 60 Hertz per second for
10、 one second without disruptive discharge of deterioration. Testing shall be as specified in 4.5.3.1 and 4.6.1. 3.3.20 Solenoid operation. The solenoid shall actuate the clearing guides and position them into the feed position when 20 volts direct eur- rent (vdc) is applied to the solenoid and when t
11、he solenoid is deenergized it shall allow the clearing guides to return to the clesfilng position under spring action of the solenoid plunger spring. specified in 4.5.3.1 and 4.6.2. Testing shall be as 3.3.21 Functioning. The feeder shall operate without stoppage or breakage of parts attributable to
12、 the feeder. fied in 4.5.3.1 and 4.6.3. Testing shall be as speci- 3.3.22 Interchangeability. Unless otherwise specified on the drawings, all paloqO. rouns per minu.r;e before power is removid and the clearing action is initiated at approximately the 5Oth, lOOth, 150th9 200th and egoth round until t
13、he 300 rounds of clirnrmy aimminition is expended. 4.6.3.2 Contractor shall be responsible for relinking dummy cartridges 4.6.3.3 Three hundred rounds of dummy amniunition shall be used for The feeder ehallbe accele-ted up to aminimum feeding 4.6.3.4 When specified by drive shall be installed in the
14、 appications at .minimum of 6ooo required, all other 4000 rounds the procuring agency, a Ooverment standar pod subsystem to test feeders for Air Force rounds per minute. Except-for the speed per minute test provisions apply. 11 Provided by IHSNot for ResaleNo reproduction or networking permitted wit
15、hout license from IHS-,-,-4.6.4 Intercha groups of parts FrQm the second feeder shall be taken in order and placed in trays 2,3, and 1; groups of parts &om the t&rd feeder shall be taken in order and placed in trays 3, 1, and 2. Parts euch as screws, spring pins, etc., shall be piaced in the same tr
16、ay as their mating: or associate m. disassenibly shall be replaced KitIlout penalty to the interchangeability test. in the same tray. Test the reassextibled feeders for functioning (see 4.6.3). Such parts rendered unserviceable by Ilhe feeders shall, be reassabled using only thbse parts which are Gr
17、oups of non-mating part 8 Group I Housing, Feeder (6310899) Wheel, Conveyor (63Di0197) Sprocket, Aft (63C10891) crank, Clearing, Aft Solenoid (ii691.1.27) Guide, Clearing, Spring, ceasiq (6310913) Guide, Clearing, Forward (63C10876). Wide, Crossover (63D10843) Group II Guide, Rim (6310903) Guide, Sc
18、oop (6310900) Link, Solenoid (63331014) Pin, Quick Release (6310948) Sprocket, Fwd. (6310890) Support, Wheel, Sliding (63D10802) Group III - Gear, Bevel (63D10808) Phte, Wide (63CiO920) Guide, Conveyor (63310829j Phte, Thrust (6910872) Guide, Rose (6310907) Shaft, Clear5 (69lOg05) Cuide, Outer (63C1
19、0904) Shaft, Feeder63D10861) Pin, Crossover Guide 163Blll34) Spring, Clearing, At (6510026) Pin, Timing (6pl005b-3) 12 t Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-F-45937 LO 779740b 0307453 7 MIL-F-4 5939 4.6.4.1.2 Concurrent repair parts.
20、 Goncurrent repair parts shall be tested for interchangeability requirement (see 3.3.22) by disassembling two feeders, pr&iously tested in 4.5.3.2.1.1, as necessary and then re- assembling themusing the concurrent repair parts. No hand refinement of parts will be asuwed, and the feeders shall operat
21、e and function properly. Tbis test msy be performed independently of the feeder interchangeability test specified in 4.5.3.2.1*1, an at more frequent intervals using ac- cepted feeders taken From current production. 4.6.4.2 Interplant. Feeders to be subjected to the interplant interchangeability tes
22、t shall be inspected for functioning using the test method specified in 4.6.3 to asswe proper operation before parts are interchanged. identified as to manufacturer. Disassenibled parts shall be mixed and the feeders shall be reassembled by random selection without altering or hand fitting ay part.
23、fnctioning using the test method specif$ed in 4.6.3. Before feeders are returned to the contractors, the original parts shall be reassembled to their respective feeders. Parts shall thenbe disassembled fromthe feeder and After assenibly, the feeders shall be inspected for 4.6.5 Endurance test, 4.6.5
24、.1 Feeders shall be tested for endurance (see 3.3.23) using 4,6.$.2 Ammunition shall be in accordance with 4.5.6.2. The feeders the test equipment specified in 4.6.3.1. shall be accelerated up to a feeding speed of 6,000 to 7,000 rounds per miante before parer is removed from the electric drive and
25、the clearing action is initiated at approximately every 150 rounds. Feeders shall be checked after each 1500 rounds for loosexing of parts. All loosened parts shall be tightened and recorded. lubricated after each 1500 rounds and at the end of each days testing. in the contract (see 6.1). In additio
26、n, the feeders shall be 4.6.5.3 Disposition of endurance tested feeders shall be as specified 4.6.6 Packaging tests. 4 . 6.6.1 Determination of cleanliness. The applicable surfaces of each sample unit shall be subjected to the determination of cleanliness test specified in KSL-P-. 4.6.6.2 Heat-peale
27、d seam. subjected to the heat-sealed seam test specified in MIIP-116. 4.6.6.3 Vacuum retention. A sufficient vacuum shall be drawn to cause the flexible barrier of level A unit packages to oling snugly .Co the enclosed item. amount of vacuum is not applied *hich might cause puncture or rupture of th
28、e barrier The sample level A unit packages shall be Ceze shall. be exeriirised to insure that an excessive Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.6.6.3.1 Interpretation of results . After remaining undisturbed at room temperature for two h
29、ours, the barrier shall be examined to etermine whether it is still taut and retracts against the itemwhen drawn away and quickly released. 5. mPARATION FOR DEI5NERy 5.1 Pilot pack. The pilot pack shall consist of a complete and packaged unit package in accordance with Packaging Dsta Sheet P63Ei9ig
30、for the level of protection epecified in the contract (see 6.1), packed 1evelC and forwarded in accordance with 3.1, 5.2 Preservation, packaging, packing and marking. Feeders shall be preserved, unit packaged, packed, and marked in accordance with the 2equirements of Packaging Deta Sheet P63ElO919 f
31、or the level of protection specified (see 6.1) . 5.3 Repair parts. Repair parts shall be pirepared for delivery bn accordance with the applicable packaging data sheete specified in the contract (see 6.2), 6. NOTES 6.1 Ordering data. Procurement documents should speciFy the fol- lawing: a. b. C. a, e
32、. f. g. h. i. 3. k. I. Title, nuniber, and date of this specification. Lists of drawings and specifications pertinent to the feeder shuwing applicable revtsion dates. Inspection criteria for components (see 4.3, 4.5.2.1, 4.5.2.3.2, 4.53.4 and 4.5.3.5.2). Index of inspection equipment lists pertinent
33、 to the feeder, showing applicable revision dates, Nuniber of first article samples required for tests (see 3.1). That packaged opened for examination shall be repackaged by the contractor at the contractors expense. Disposition of endurance tested feeders and parts (see 4.6.5.3). Shipping instructi
34、ons for first article samples and pilot pack (see 3.1 and 5.1). Selection of applicable levels of preservation, packaging and packbng (see 5.2). Packaging instructions for repair parta (see 5.3). Place of fina inspection and acceptance (see Votes“ in List of acceptance inspection equipment to be fur
35、nished the contractor (see 4.5.4 .i) and responsibilitied for other Government property to be Aumished the contractor. mLW-13855) e 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- flIL-F-L15739 LO 7777706 0307455 2 = m, Responsibilities for mishi
36、ng ammunition. n. Shipping instructions for feeders and parts when an interplant interchangeability test is required (see 4.5.3.2.2). Procedures and methobs for disposing of rejected material. Disposition of Government Rirnished property, o. p. 6,2 When action by a testing agency is required, work p
37、rograming wiU be effected with the testing agency at the earliest practicable date. 6.3 knthly reports of the results of final examination and func- tioning, endurance and interchangeability tests shall be made to the Coxmanding General, U.S. Army Weapons Conmiand, Atta: AMSWE-QA, Rock Illand, Illin
38、ois 6l.201. 6.4 Supersession data. This specification includes the require- ments of Springfield Armo ry Purchase Description sAm)-324, dated 5 June 1967* 6.5 When warranted, the contract should specify the application of 11r-9858 or ML-1-45208, as appropriate, on the kaagement Cohtrol Systems Sunan
39、ary Lst, DD Form 1660, specify the application of MILI-45607 and hkC-45662 on the Management Control Summary List, DD Form 1660. 6.6 Unless otherwise specified (see 6.1 i), the contract should .Custodian : hly - wc Navy - os Air Force - 84 Preparing activity: &my - wc Project -ber: 1005-O458 *US. GOVERNMENT PRINTING OFFICE : 1071 -7 14-18 i/ 13 184 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
