1、MIL-L-45963 LO 7799906 O307642 I s-37-03 MILL-45963 1 October 1974 SUPERSEDING (See Section 6) MILITARY SPECIFICATION LQADm, DELi“G, AIRCRAET MAC- GUN, MAU-69A/A This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 This specification cover
2、s one type of manually operated de- linking loader used on the 7.62 millimeter (mm) aircraft machine gun pods, 18, Ml8A1, SUU-lIA/A, and SUU-l1B/A. belted ammunition and load the ammunition into the pod linkless feed system. The loader is used to delink The loader is also used to unload the ammuniti
3、on from the pod. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this speci- fication to the extent specified herein: SPECIFICATIONS Federal IT-P- 1757 - Primer Coating, Zinc Chromate, Low Moisture Sens
4、itivity. Military 1-w-13855 - Weapons, Small Arms and Aircraft Armament Subsystems, General Specification For. MIL-P-14232 - Parts, Equipment and Tools For Army Materiel, Packaging and Packing of. 1-1-45607 - Inspection Equipment, Acquisition, Maintenance and Disposition of. MIL-L-46150 - Lubricant,
5、 Weapons, Semi-Fluid (High Load-Carrying Capacity). FSC i005 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- -_. . MIL-L-45763 10 777790b 0309b43 3 iI MIL-Lo45963 Military MIL-STD-105 - Sampling Procedures and Tables for Inskction by Attributes . ti
6、ons a MIL-STD-109 - Quality Assurance Terms and Defini- DRAWINGS Rock Island Arsenal 65D943 - Loader Assembly, Delinking, Aircraft Machine Gun MAU-69A/A. m-uo13208 - 3iidex of Inspection Equipment Lists. PUBIJCATIONS Rock Island Arsenal waging Data Sheet for Loader Assembly, Delinking, Aircraft Mach
7、ine Gun MAU063A/A (Copies of specifications, standards, drawings, and publications re- quired by suppliers in connection with specific procurement functions should be obtained fromthe pocurtng activity or as directed by the contracting officer . ) 3.1 First asticle. The requirements for submission o
8、f the first Unless other article SU be as specified in the contract (see 6.2). wise specified (see 6.1), the first article shall include the pilot pack (see 5.1). 3.2 Materials, construction, and _.- design. The loader shall conform - to the niaterials on Draning 65D913, an in MIEW-13855. constructi
9、on, and desim requirements, specified herein, 3.2.1 End cap. The end cap shall be securely retained on the housing assembly by the retaining screw so that there shall be no re- lative mement. 3.2.2 Handle. The handle shall be securely attached to the loader crank by the self-locking nut and shall ro
10、tate without binding on the handle stem. 3.2.3 Identification plate. The identification plate shd.1 be die stamped or etched in accordance with the applicable drawing and shall be securely attached to the housing assembly by the drive screws so that there shall be no relative movement. _ - 2 Provide
11、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-L-45963 LO 999990b 0309644 5 W MIL-L-45963 3.2.4 Round direction plate. The adhesive backed round direction plate shall be securely attached to the housing assembly so that there shall be no raised edges
12、or corners. 3.2.5 Inner round guide, attached to the housing assembly by the retaining screws so that there shall be no relative movement. The inner round guide shall be securely 3.2.6 Loader crank, The loader crank shall be retained on the torque adapter by the spring pin. 3.2.7 Loader shaft - grou
13、p. The loader gear, link sprocket, forward guide, and push rod guide shall be securely retained on the loader shaft by the spring pins so that there shall be no relative movement. loader shaft, with the attached parts, shall rotate in the bearings in the loader housing and the end cap without bindin
14、g in the bearings or internal surfaces of the housing. The 3.2.8 Lubrication, The push rod assemblies, rollers and their guides shall be coated with lubricating oil conforming to MIL-L-46159. 3.2.9 Corrosion prevention. Primer coating conforming to TT-P-1757 shall be applied to the end cap prior to
15、assembly to the loader housing assembly and shall be applied to the crank prior to assembly to the handle. 3.2.10 Push rod assemblies. The push rod assemblies and rollers shall move through their nil1 range of travel in the push rod guide and the loader housing cam respectively without binding when
16、the loader shaft is rotated. The push rod pins shall be a press fit in the push rods and the push rod rollers shall rotate on the pins without binding. The push rod assemblies shall strip the cartridges from the links and position the rounds on the forward sprocket of the loader for transfer into th
17、e exit unit assembly sprockets of the pod. 3.2.11 Quick release pin, The quick release pin shall be capable of being manually assembled into and disassembled from the retaining hole in the loader hoking. be retained in place by the action of he ball detents. When assembled into the retaining hole, i
18、t shall 3.3 Performance characteristics. - 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-45963 LO m 3777906 0309645 7 I. 3.3.1 Functioning. The loader shall operate without malfunctions or unserviceable parts attributable to the functioning
19、 of the loader. The loader sui strip Government stanaa 7.62, inert loaded, m72 dummy cartridges from the links, shall transfer the stripped tunmunition into the pod ammunition system, and shU eject links without damage to the links. The loader SU also unload the ammunition from the pod without damag
20、e to the ammunition. Testing shall be as specified in 4.5.3.2. 3.3.1.1 Torque adapter. The torque adapter shall be securely The torque adapter attached to the loader shaft by the spring pin. shall not slip until a torque of 80 to 100 inch-pounds is exerted on the crank in a clockwise or counter cloc
21、kwise direction with the load- er shaft in a socked position. 2.1. Testhg shall be as specified in 4.5.3.- 3.3.2 Endurance. - Loaders shall be capable of withstanding the loading of 30,OOO rounds of Government Standard 7.62mm, inert loaded, Mi72 dummy cartridges into a pod ammunition system without
22、malfunctions or unserviceable parts attributable to the loader. Testing shall be as specified in 4.5.3.3. 3.4 -_- Interchangeability. Unless otherwise specified on the dradng, all pa,rts and repair parts SU be interchangeable. as specified in 4.5.3.4. Testing shall be 3.5 Marking. Marking of loaders
23、 shall be in accordance with MIL-W-13855, The identification plate shall be securely attached to the loader. by the procuring activity (see 6.2). Each loader shall be identified by seria3 numbers assigned Workmanship. Workmanship shall be in accordance with MIL 4, QUALIJ!Y ASSURANCE PROVISIONS 4.1 R
24、esEsibility _-._.C_-_ for inspection. - - - Unless otherwise specified in the contraor purchase order, the supplier is responsible for the per- formance of all inspection requirements a+ specified herein. Except as otherwise specified in the contract or order, the supplier may use his own or any oth
25、er facilities suitable for the performance of the inspec- tion requirements specified herein, unless disapproved by the Goverment. The Government reserves the right to perform ay of the inspections set forth in the specification where such inspections are deemed necessary to subsequent endurance tes
26、t, lot size shall consist of 100 loaders. 4.5.3.3.2 Procedure. One loader shall be selected from each endurance test lot and tested for endurance (see 3.3.2) using the test method specified in 4.6.2. shall be cause for rejection of the represented lot. Failure of the loader to meet the requirements
27、4,5.3,4 Interchangeability testing, 4.5.3.4.1 In plant. 4.5.3.4.1.1 Loaders. A sample of three loaders selected from each months production shall be tested for interchangeability (see 3.4) using the test method specified in 4.6.3.1.1. ability testing shall have been found satisfactory in all other e
28、xaminations and test, requirements after interchange of parts using the test methods specified in 4.6.1 and 4.6.1.1 respectively. ments of the interchangeability test shall be cause for rejection of the represented lot. Loaders taken for interchange- The three loaders shall be tested for functioning
29、 and torque Failure of loaders to meet the require- 4.5.3.4.1,2 Concurrent repair parts. At least two parts from each inspection lot of concurrent repair parts shall be subjected to the inter- changeability test specified in 4.6.3.1.2. the requirements shall be cause for rejection of the represented
30、 lot and the contractor shall perform the corrective action as specified in 4.5.3.1. reconditioned lot and a sample of double the number of parts used in.the original test shall be tested from each reconditioned lot using the test method specified in 4.6.3.1.1. Failure of any part to meet Parts subj
31、ect to reconditioning and further test shall become a 4.5.3.4.2 Interplant. When loaders are manufactured concurrently by more than one contractor, each contractor- shall forward monthly three loaders for the interplant interchangeability test specified in 4.6.3.2. (see 6.2). The contractor shall be
32、 informed of any failure of the loader to meet prescribed requirements. inspection, samples may be commercially packaged and will be returned to the contractor for repackaging in accordance with procurement documents at the contractors expense. Upon completion of testing agency 4.5.3.5 Certification
33、. Unless otherwise specified, the contractor shall furnish the Government representative with certified statements that each inspection lot conforms to the applicable drawings, specifi- cations of the materials and processes specified on Drawing 65119843. 7 Provided by IHSNot for ResaleNo reproducti
34、on or networking permitted without license from IHS-,-,-. MIL-L-45963 LO W 9799906 0307649 4 = 4.5.3.6 Component parts and concurrent repair parts testing. Raw This material testing, part testing and certification shall be performed in accordance with the criteria specified in the contract (see 6.2)
35、. will include chemical analysis and physical tests of materials and tests of protective finish, heat treatment, bonding and function of parts as applicable. of parts into the end item. The contractor shall accomplish these tests prior to assembly 4.5.4 Packaging examination and testing. Unless othe
36、rwise specified (see 6.2), the packaging examination and testing shall be in accordance with MIL-P-14232. 4.5, Inspection equipment. 4.5.5.1 Unless otherwise specified in the procurement documents (see 6.2), responsibilities for acquisition, maintenance and disposition of measuring and testing equip
37、ment prescribed on lists contained on the Index of Inspection Equipment Lists, Drawing IEL11013208 and for all other inspection equipment required to perform inspection required by applicable specifications, shall be in accordance with MIL-1-45607. 4.5.5.2 Accuracy of standard measuring equipment. W
38、hen commercial and modified commercial inspection and test equipment is used, it must be capable of repetitive measurements to an accuracy of 10 percent of the total tolerance of the characteristics being tested. 4.6 Test methods. 4.6.1 Functioning test. Loaders shall be tested for functioning using
39、 a M18, M18A1 or SUU-lLA/A, SUU-llB/A slave pod or contractor de- signed, Government approved test equipment which simulates the pod amnition system. be used for testing each loader. The loader shallbe attached to the test equipment by the lugs on the loader housing and the quick release pin, The am
40、munition belt shall be placed in the loader and the loader crank manually turned counterclockwise to delink the ammunition an load the ammunition into the pod or test equipment. manually clockwise to unload the omuriition from the pod or test equip- ment. During the test, visually assure that the de
41、linked ammunition is transferred into and out of the pod or test equionent; that the links are ejected from the loader, and that the cartridges and links are not damaged. One belt of 300 rounds of linked dummy amunition shall Turn the loader crank 4.6.1.1 Torque adapter test. Remove the loader crank
42、 and block the loader shaft so it cannot turn. indicator gage to the torque adapter and apply torque until the torque adapter slips. torque requirements (see 3.3.1.1) have been met. Attach a commercial standard torque Observe the torque reading to determine whether the 8 Provided by IHSNot for Resal
43、eNo reproduction or networking permitted without license from IHS-,-,-. MILL-4 5963 4,6,2 Endurance test. Uaders shall be tested for endurance Using a Ml8, Ml8A1, SW-lU/A, or SW-llB/A slave pod or contractor designed, Government approved test equipmentwhich simulates the pod atnumiition system. A to
44、tal of 30,oOO rounds of dunany ammition in belts of 300 rounds each shall be loded atad unloaded fimm the slave pod or test equip- ment. At the completion of the endurance test the loader shall be subjected to the torque adapter test specified in 4.6.LL Dis- position of enurance tested loaders shall
45、 be as specified h the contract (see 6.2). 4.6.3 - interchange of part s. rC.6oQ.i EI piant. 4.6.3.i. Loaders. Loaders shall be tested for interchange of parts by disassembling and then reassembling parts using the parts and pre-arranged system specified below. Interchange of parts shall be accompli
46、shed by dividing the parts of each loader into three groups of non-mating pasts as shown below and distributing the groups into thee different trays until each tray contdns parts for a complete loader. Groups of parts from the first loader shall be taken in order and placed in trays 1 though 3; grou
47、ps of parts fromthe second loader shall be taken in order an placed in trays 2,3, and 1; groups of pasts from the third loader shall be taken in order and placed in trays 3, 1, and 2. Parts such as screm, swing pins, etc., shall be placed in the same tray as their mating or associate part. Such part
48、s rendered unserviceable by disassenibly shall be replaced without penalty to the interchangeability test. in the same tray. Test the reassenfle loaders for functioning and torque. (see 4.6.1 and 4.6.i.i). The loders shU be reassenbled using only those parts which are Groups of non-mating pElrts - -
49、I- Group I Group I& - Adapter, torque (6510027) Handle (659912) war, loader (659836) Cuide, inner roun (65c985) Guide, forward (65C9a38) Guide, push rod (65cg840) Housing assembly (6599) Rouer, push rod (6310821) Shaft, loader (65B9829) 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-lm4-45963 . 4.6.3.1.2 Concurrent repa-z.r parts. Concurrent repair parts
