1、MIL-L-455B9 LO m 373770b 0430884 5 W MIL-L-4 5 589 2 February 1970 SUPERSEDING (See Section 6) MILITARY SPECIFICATIN LAIJNCHER, GRENADE, 40MM; Mj9 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
2、 single-shot, breech- loading, shoulder weapon which fires a low velocity 40 millimeter (M) grenade projectile. 2. AppfrIcAi3mDocuMENTs 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 spec%- fication to the -extent specif
3、ied herein. SPECIFICATIONS Military 1p-116 -8625 MIL-G- 10944 MIL-w-13855 MIL-P-16232 MIL- 1-4 5607 MIL-C-45662 STAHTXRDS Military MIL-STD- 9 MILSTD-105 MIL- STD- 109 Preservation, Methods of. Anodic Coating, for Aluminum and Aluminum Alloys. Gages, Dimensional Control. Weapons, Small Arms and Aircr
4、aft Armament Subsystems, General Specification Tor, Phosphate Coatings, Heavy, Manganese of Zinc Base (For Ferrous Metals). Inspection Equipmen-k, Supply and hintainance Qf . Calibration System Requirements. Screw Thread Conventions and Methods of Sampling Procedure6 and Tables for Inspection by Att
5、ributes. Quality Assurance Terms and Definitions. specifaring. FSC 1010 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-45587 LO W 999990b 0430885 7 W NL-L-4 5 589 DRAWINGS U.S. Army Weapons Command F7790600 - Launcher, Grenade, W9. 7274616 - L
6、ist of Inspection Equipment Nimibers . (Part drawings referenced in this specification form a part of Drawing F7790600; inspection equipment drawings form a part of Drawing IEL 7274615.) PUBLICATIONS U.S. Army Weapons Command P8426167 - Packaging Data Sheet for Launcher, Grenade, 40MM,-M7g W/Equipme
7、nt . (Copies o specifications, standurda, drawings, and publications re- quired by suppliers in connection with specifie procurement functions should be obtained from the procuring activity or as directed by the contracting officer. ) 2.2 Other publications. !#%e following documents form a part of t
8、his specification to the extent specified her$n, indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. Unless otherwise American National Standards Institute Incorporated B46.1 - Surface Texture Yl4.5 - Dimensioning and Tolerancing for Engineering Drawing
9、s (Application for copies should be addressed to the American National Standards Institute Incorporated, 1430 Broadway, Mew York, New York 10018. ) American Welding Society Standard AWS A2.0 - Welding Symbols (Application for copies should be addressed to the American Weldlng Society, 345 East 47th
10、Street, New York, New York 10017.) 3.1 Quality evaluation items. On each contract samples of launchers, pairavelwith no lateral move- ment beyond the limits specified on the applicable drawing. The rear wive1 assembly shall be fastened Screws shall be 3 Provided by IHSNot for ResaleNo reproduction o
11、r networking permitted without license from IHS-,-,-MIL-L-45587 LO = 4777906 O430887 O W MIL- L- 4 5589 3.3.6 Recoil pad. The recoil pad shall be fastened securely to Screws shall be torqued as specified on Drawing the stock by screws. Di1010343 after alining to the stock. 3.3.7 Latch. The latch sha
12、ll be fastene securely to the latch pivot by the spring pin and shall move through its full range of travel without binding. position and shall be held in the “open“ position by spring action of +the latch lock, permitting the launcher to be opened. remain in the “open“ position until the launcher i
13、s closed. Closing the launcher shall cause the locking lug to depress the latch lock. The latch shall return under spring actton to its original position, locking the barrel in battery position. launcher until the latch has been moved to the “open“ position. The latch lock shall travel freely withou
14、t bind. with the launcher held in any position. - The latch shall pivot under thumb pressure to the “open“ The latch shall It shall not be possible to open the The latch shall operate 3.4 Heat treatment. When heat treatnebt is specified it shall be in accordance with that specified n the applicable
15、drawing. 3.5 Dimensions and tolerances. Dimensions and tolerances of parts and assemblies of the launcher shall conform to the detail drawings referenced on Drawing F7790600. shall be in accordance with Yi4.5. dimensional provisions of 116232 shall apply and for anodized coated parts, the dimensiona
16、l provisions of 1-8625 shall apply. Interpretation of dimansions and tolerances For phosphate coated parts, the 3 . 6 Surface roughness. Surface roughness shall be as specified on the applicable drawings. Interpretation of surface roughness symbols shall be as defined in 346.1, 3.7 Protective finish
17、es. 3.7.1 Inorganic finishes. Parts requiring an inorganic finish shall be finished or coated as indicated on the applicable drawing and in accord- ance with MIL-STD-171, 3.7.2 Painting. Launcher parts shall be painted as specified on Parts not. to be painted shall be in accordance with MIX- the app
18、licable drawing. MIL-W-13855. Touch-up procedures shall be in accordance with STD- 171. 3.8 Construction. 3.8.1 Assembly. Parts and components shal be positioned and at- tached as depicted on Assembly Drawing F7790600 and applicable detail drawings . 4 Provided by IHSNot for ResaleNo reproduction or
19、 networking permitted without license from IHS-,-,-MIL-L-45587 LO 7797706 0430888 2 = -45589 . 3.8.2 Welding andbraxing. Welding and brazing shall be in accord= ance with the applicable drawing. picted on the applicable drawings shall be as defined in AWS A2.0. Interpretation of welding symbols dei.
20、 3.8.3 Threads. 3.8.4 Identification. Mwking of launchers, inchding application Threads Shan conform to the thread series and class indica-bed on the applicable drawing and in accordance with MIL-STD-9, of part numbers, shall be as indicated on the applicable drawing and in accordance with MIL-W-138
21、55. the procuring activity. Serial numbers shall be furnished by 3.9 Performance and product characteristics. 3.9.1 Safety. 3.9.1.1 Functioning of safety. When the barrel is locked in battery position and the trigger is in the normal forward position, the safety shall be movable between the “safett
22、and “fire“ positions and shall remain in the pasition set under spring action of the safety spring plunger until reset manually. the letter “F“ 1s completely uncovered and the hammer is cocked, the hammer shall rlease as the trigger is pulled, rearward, so that the letter “S“ is completely uncovered
23、, the safety bar shall restrict trigger movement and prevent firlng of the launcher. the safety is In “fire“ position, rotating the latch to any point where the latch peMts the launcher to open shall cause the safety to move to the “safe“ position. 3.9.1.2 Safety actuation force. The force required
24、to move the safety from the safe position to the “fire“ position shall be not greater than 16 pounds, nor lessthan 4 pounds, when tested as specified in 4.4.3.1 and 4.5.7. When the safety is positioned forward, so that When the safety is positioned When 3.9.1.3 Sear-.safety. The difference between t
25、he maximum vertical movement of the sear during cocking-of the hammer and the maximum vertical movement of the sear, when the trigger is pulled with the hamer cocked and the safety in the “safe“ position, shall be not less than 0026 inches at datum -A- 4.4.3.1 and 4.5.8. shown on, Drawing F7790600,
26、when tested as specified in 3.9.2 Hammer. The hammer shall pivot on the hammer pin through its Full range of travel without binding. When the ltiuncher is filly opened, the hammer shall move to the cocked position by action of the cocking arm on the cocking lever and shall be held in the cocked posi
27、tion by engagement with the sear. When the safety is set in “fire“ position, the hamer shall disengage fkom the sear as the trigger is pulled and move under spring action to actuate the firing pin. After actuating the firing pin, the hammer shall be returned to, and be held in, its normal forward po
28、sltion by spring action on the sear, permittfng the firing pin nose to return to its retracted position, flush with, or below, the breech face. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-45587 LO W 797770b 0430887 LI W MIL-L-45589 -3.9.3
29、 Trigger and sear. With the hamer cocked, and the safety in “fire“ position, the trigger and sear shall return to their original _ positions Gder spring _ action - after any partial trigger pull short of kejeasZng the -b reserves the right to perform any of the inspections set forth in the specifica
30、tion where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements, Except as 4.2 Quality assurance te- and definitions. Quality assurance terms and definitions used herein are in accordance with MIL-STD-109. 4.3 Quality evaluation item inspection Ins
31、pection of quality eval- uation launchers (see 3.1) and pilot pack (see 5.1) shall be performed at the designated testing agency, Launchers shall be subjected to the exam- inatlon and test specified herein including function firing and endurance fir5ng and such other examination and tests as are nec
32、essary to determine compliance with the requirement of the contract. shall be subjected to the free fall drop test specified in mp-116 except that arop height shall be 21 inches. Level A unit packages 4.4 Quality conformance inspection. 4.4.1 inspection lot. 4.4.i Launchers. Unless otherwise specifi
33、ed, an inspection -lot of launchers shall be one months production. *om lots of component parts that have met all inspection requirements specified herein. Launchers shall be assembled 4.4.1.2 Parts and packaging. The formation, size, and presentation of inspection lots of parts and packaging shall
34、be in accordance with MTL-STD-105. sideration of quality history, manufacturing conditions, contractors delivery schedule, and within the limi- and correct %he applicable production processes and procedures to preven% recurrence of the same defects in future pro- duction. components (including parts
35、 and subassetblies at either or both in-process or final assenibly) to insure that material containing the same or similar defects is purged from the inventory and not presented to the Government for acceptance . 4.4.3.4.4 Examine launchers, partially assembled launchers, and Provided by IHSNot for
36、ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-L-i.15587 LO m 7777706 Oi.130877 3 m MIL- L- 4 5589 4.4.3.4.5 Upon instruction from AMSWX-QA, resume testing of the launcher which failed the endurance test, or retest an additional sample of two (2) launchers from same
37、lot or reconditioned lot for endurance testing. cannot be determined, the contractor shall request through the Administrative Contracting Officer, technical assistance from tha procuring activity, testing necessary to accomplish certification. of launchers, the contractor shall provide the Governmen
38、t representatfve with certified statements of compliance with applfcable drawings and specifications for the following materials and processes: In the event the cause of the failed components or malfunctions 4.4.3.5 Certification. The contractor shall be responsible for For each inspection lot a) To
39、uch-up procedures (see MIL-W-1-3855) . t b) Torque of screws (see Drawing E77906W). (c) Pin, Straight, Headless (see Drawing A7790637) . 4.4.3.6 Component parts and concurrent repair parts testing. Raw material testing and part testing shall be performed in accordance with the criteria specified in
40、the contract (see 6.1). will include chemical analysis and physical tests of materials, and tests of protective finish, heat treatment, bonding, and function of parts as applicable. to assembly of parts into the end item or submission for acceptance as repair parts. Statements of findlng The contrac
41、tor shall accomplish these tests prior 4.4.3.7 Packaging testixg. 4 .4 . 3.7.1 Launchers. 4.4.3.7.1.1 The contractor shall furnish the Government representative with certification that the packaging materials conform to the applicable packaging data sheets and specifications. 4.4.3.7.1.2 Determinati
42、on of cieaniness. The contractor shall test items from each inspection lot for cleanliness usina the test methods specified in 4.5.9.1. Sampling shall be in accordance with MIL-P-U. 4.4.3.7.1.3 Heat-sealed seam and vacuum retention. The contractor shall test level A unit packages from each inspectio
43、n lot for heat-sealed seam and vacuum r,etention using the test methods specified in 4.5.9.2 and 4.5.9.3 respectively. Sampling shall be in accordance with MIL-P-116. 4.4.3.7.2 Repair parts. Testing of packaging of repair parts shall be performed in accordance with the criteria specified in the cont
44、ract (see 6.1). 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-45587 LO 7779706 0430878 5 4.4.4 inspection equipment . 4.4,4, Unless otherwise- specified in the contract (see re- sponsibilities for acquisition, maintenance, and disposition
45、of inspection and test equipment prescribed on list of Inspection Equipment Numbers IEL 7274616y and for all other inspection equipment required to perform inspection prescribe by applicable specifications, shall be in accordance with 1LI-45607 and, MIL-c-45662 . 4.4.4.2 Unless otherwise s ecified i
46、n procurement documents, GoV- ernment standard 40MM M378 test P inert projectile) cartridges shall be used in all firing tests (see 6.1)* 4.5 Test methods. 4.5.i Firing pin indent test. bunchers shall be tested for firing The launcher shall be pin indent requirement (see 3 . 9 10) ushg the inspectio
47、n equipment in accordance with Drawings 7218984 and 7798912. held in a horizontal position (approximately), the launcher opened, and the copper compression cylinder holding fixture containing the copper compression cylinder, awing B5039436, inserted in the barrel chamber. The-hhcher shall then be-cl
48、osed, the safety- set in the “fire“ position, and the trigger pulled- to release the hammer and indent the copper kylinder. The holding fixture shall then be removed fromthe launcher and the depth of the indent in the copper compresfiion cylinder computed by measuring the disbance from the original
49、surface of the copper cylinder (Before indentation) to the bottom of the firing pin impression. If any firing pin indent is not within the requirements, three more impressions shall be taken and the average depth of the three indents of each test shall be within the requirements. Each indent shall be visually examined to deeermine whether the concentricity requirement has been met. 4.5.2 Firing pin intrusion test.
