ARMY MIL-A-45940-1971 ARMAMENT SUBSYSTEM HELICOPTER 7 62MM MACHINE GUN DOOR MOUNTED LIGHT WEIGHT M24 (LESS M60D MACHINE GUN)《M24型直升机装备子系统7 62mm大门装重量轻高射机枪(少于M60D机枪)》.pdf
《ARMY MIL-A-45940-1971 ARMAMENT SUBSYSTEM HELICOPTER 7 62MM MACHINE GUN DOOR MOUNTED LIGHT WEIGHT M24 (LESS M60D MACHINE GUN)《M24型直升机装备子系统7 62mm大门装重量轻高射机枪(少于M60D机枪)》.pdf》由会员分享,可在线阅读,更多相关《ARMY MIL-A-45940-1971 ARMAMENT SUBSYSTEM HELICOPTER 7 62MM MACHINE GUN DOOR MOUNTED LIGHT WEIGHT M24 (LESS M60D MACHINE GUN)《M24型直升机装备子系统7 62mm大门装重量轻高射机枪(少于M60D机枪)》.pdf(17页珍藏版)》请在麦多课文档分享上搜索。
1、MIL-A=45940(WC) 7 December 71 SUPERSEDING (See Section 6) MILITARY SPECIFICATION ARMAMENT SUBSYSTEM, HELICOPPER, 7.62MM MCHINE GUN: DOOR MWTED, LIGm WEIGW, M24 (Less M6OD Machine Gun) 1. SCOPE 1.1 This specification covers one type light weight armament sub- system providing two pintle mounted 7.62m
2、m, 60 machineguns for right hand door and left hand escape hatch installation on CH-47 type helicopters. 2, APPLICABLF: Doms 2.1 The following documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of the specifi- cation to the extent specified herein.
3、SPECIFICATIONS Military MIL-P-116 - Preservation, Methods of. MIL-I-6866 - Inspection, Penetrant Method of. MILI- 6868 - Inspection Process, Magnetic Particle. MIL-w-8611 - Welding, Metal Arc and Gas, Steel and Corrosion and Heat Resistant Alloys; Process for. MIL-W-12332 - Welding, Resistance, Spot
4、, Seam and Projection; For Fabricating Assemblies of Law-Carbon Steel. MIL-W-i3855 - Weapons, Small Arms and Aircraft Armament Subsystems, General Specification for. MIL-1-45607 - Inspection Equipment, Acquisition, Main- tenance and Disposition of. VHIS DOCUMENT CONTAINS 5 PAGES. FSC i005 P Licensed
5、 by Information Handling ServicesMilitary MIL-STD-105 - Sampling Procedures and Tables for 3n- spection by Attributes. MIL-STD-109 - Quality Assurance Terms and Definitions. MIL-STD-1261 - Welding Procedures and Constructional Steels . DRAWINGS U.S. Army Weapons Command A11699676 - Armament Subsyste
6、m, Helicopter, 7.6211n Machine Gun, Door Mounted, Light Weight, E124 9 ELilOz3X68 - Index of Inspection Equipment Lists, (Product drawings referenced in this specification are specified on Drawing A11699676 and related assembly drawings j . acceptance inspection equipment drawings form a part of Dra
7、wing IEZIl&$.) PUBLICATIONS U.S. Army Weapons Command Pl3427091 - Packaging Data Sheet for Armament Subsystem, Helicopter : M24 . (Copies of specifications, standards, drawl ngs, and publications required by suppliers in connect5on with specific procurement finctions should be obtained from the proc
8、uring activity or as directed by the contracting officer . ) 3. mmms 3.1 First article. Requirement for submission of the first article shall be as specified in the contract (see.6.1). Unless otherwise specified (see Gel)# the first article shall include the pilot pack (see 5.1). 3.2 Ikterials, cons
9、truction and design. The armament subsystem and parts shall conform to the naaterials, construction and design require- . ments specified herein, on Drawing Ai1699676 and drawings applicable thereto, and shall be in accordance with the applicable materials, construction and design provisions OZ NtL-
10、W-13855. 2 Licensed by Information Handling Services3.2.1 Welding. 3.2.1.1 Certification of welding. Unless otherwise specified (see 6.1), prior to production of any weldments, the contractor or manufacturer shall have Government approval of welding procedures and test specimens. ance with the appli
11、cable drawing and as specified herein. Welding of parts and subassemblies shall be in accord- 3.2.1.2 Welded joints. All welded joints of parts and subassemblies shall be sound and free of cracks, particle inspected in accordance with MIL-1-6868 and penetrant inspected in accordance with MIL-1-6866
12、as applicable. Welded joints shall be magnetic 3.2,s Gun mount assembly, 3.2.2.1 Gun mount. The right and left hand gun mounts shall be capable of assembly for the right and left side door mounting respectively and be securely attached to the door mount, by the quick release pin. Welding of the gun
13、mount assenfbly shall be in accordance with MIL-w-8611. 3.2.2.2 Pintle. The pintle shall assemble in the pintle post and be retained in-intle post by ball bearings. throughout its full range of travel without binding, retainer set screw shall be securely staked in place. The pintle shall rotate The
14、ball bearing 3.2.2.3 Quick release pin. The quick release pin shall readily The quick assemble to and disassemble fromthe mount bracket, and when assembled shall be retained in the mount bracket by the ball detent. release pin shall be attached to the mount bracket by the cable (see 3.2.7). 3.2.3 Am
15、unition box. The ammunition box shall readily asseuible to and disassemble fromthe weapon and be retained on the weapon by the weapon bracket assembly. The ammunition retaining rod shall move freely throughout its nil1 range of travel and held securely in position by the spring clip. The ejector plu
16、nger shall move freely throughout its full range of travel and be returned to its original position by spring action. Welding of the ammunition box shall be in accordance with MIL-STD-1261, and shall withstand the weld peel test in accordance with MIL-W-12332. 3 Y Licensed by Information Handling Se
17、rvicesflIL-A-qS790 LO 7977706 0307457 T 9 I 3.2.4 Empty cartridge bag. The empty cartridge bag shall be capable of being retained and removed fromthe cartridge bag frame assembly . frame assembly shall be capable of being attached to and removed from the weapon. without binding, and when released sh
18、all return to its original position by spring action. ance with ms-1261. 3.2.5 Empty cartridge bag frame assenibly. The empty cartridge bag The latch shall move freely through its full range of travel Welding of the cartridge bag frame shall be in accord- 3.2.6 Elastic cord assembly. The elastic cor
19、d assembly shall be securely retained on the mount bracket. a gradual applied stretch load of 75 pounds k 5 pounds without daniage or permanent stretch, 3.2.7 Cable assembly. The crimped sleeves on the cable shall be capable of withstanding the tensile load of 50 pounds without evidence of the cable
20、 pulling out of the sleeve. The elastic cord shall withstand 3.2.8 Endurance. The armament subsystem shall have a 90s probability of firing 10,000 rounds, and withstanding 100 cycles of rough handling without malfunctions, unserviceable parts or cracking of welded joints with a lo$ confidence level.
21、 Testing shall be as specified in 4.4.3.2 and 4.6.1. A malfunction is defined as one which a failure of the mount as a component of the munt precludes further firing without replacement of the munt or component of the mount. sembled to both right hand mount and left hand mount shall meet the target
22、requirements defined in Figures la, lb, 2a and 2b (see 4.4.2.2.5). 3.2.9 Targeting. The armament subsystem with M60D machinegun as- 3.3 Marking. Each armment subsystem shall be clearly marked in 3.4 Workmanship. Workmanship shall be in accordance with the accordance with the applicable drawings and
23、MLAI-13855. workmanship requirements of MfL-11-13855 . 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in Except as the contract or purchase order, the supplier is responsible for the per- formance of all inspection requirements as specified herein, othe
24、rwise specifled in the contract or order, the supplier may use his own or any other facilities suitable for the performnce of the inspection requirements specifled herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set foith in the speci
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