1、MIL-I-4bb25C 13 rn 7777906 0427737 7 rn I INCH-POUNDI MIL-I-46625C 31 January 1990 SUPERSEDING I2 June M9 and AMENDMENT 2 20 July 1973 MIL-I-46625B(MU) MILITARY SPECIFICATION INITIATioR, CAKRIDGE hAm M3A2, Remkuf-tured Metal Parts LAssemMy rnitiator, Cartridge Actuated, M3A2, Mecai parts key . ._ .-
2、 MIL-STD-I(H MIL-Slr)-109 MIL-STD-453 Inspection; Radiograph - MS28741 Sampling proedures and mes fit Inspeetiority Witmteq Quality Assurance krms and Definitions Hose Assembly, -. Detachable End Fitting, Medium Pressure (Unless otherwise indicated, copies of federal and miliary specifications, stan
3、dards, and handbooks are available from Military SpecificatiOns.and Staqdards, Bldg 44 Mo Robbins Avenue, Philadelphia, PA 19111-5094.) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in impraving Uiis document should be addressed to: Coaitnandi
4、ng Officer, Naval Ordnnce Statim, Smardization Branch (37301. Indian Head, MD 20ii40.5000, by using tbe self-adresed Standardizatim Documat hnprmment Proposal (DD Forni 1426) appearing at the end of this document or by letter. AMSC NIA FSC 1377 DISTRIBUTION STATEMENT A. Approved for public release;
5、distribution is unlimited, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- -7 MIL-I-4bb25C 13 9999906 0427938 9 I MIL-1-46625C 2-i.2 Other Government documents, drawings, and publications. The following other Government documents, drawings; and publ
6、ications form a part of this document to the extent specified herein. Unless other- wise specified, the issues are those cited in the soliciation. DRAWINGS , NAVAL ORDNANCE STATION, INDIAN HEAD, MD (CAGE Code 19200 and 19203) DL595821 8594157 Cartridge, Impuls, M73 Assembly 87%541 8796542 9216934 In
7、itiator, Cartridge Actuated, MM2 Assembly Box, Fiberboard (Inner) Packing, Ammunition, for Initiators, Cartridge Actuated, M3A2 or M5A2 Box, Packing, Ammunition, fir Initiator, Cartridge Actuated, M3A2 or M5A2 Box, Fiberboard (Outer) Alternative Packing, Ammunition, hr Initiator, Cartridge Actuated,
8、 M3A2 or M5A2 . . : .e U.S. AIR FORCE TPO 00.932-5031 . Initiator, Cartridge Actuated, M3A2 (Application for copies should be addressed to: Commanding Officer, Naval OrdnanceStafion, Data Contrbl Branch (3720),. Indian Head, MD 20640-5000,) 2.2 Orth of precedenc- In the event ,of 4. pqflict between
9、the text. of this docufnent and the references cited herein, the text of this document takes precedence. Nothingin this aocument, however, supersedes applicable laws and regulations unless a specific exemption has been ohtained. 3. REQUIREMENTS 3.1 Materiais, Ail materials used in the manufacture of
10、 the initiators shall confirm strittly to thespecifications referred to on the respective drawings unless specific, appravgl in writing covering a depattye.therefrom has been obtained from the cognizant. Navy design aqjyity prior to maqufaeture. Wh,en alternate materials or methods of manufacture ar
11、e specified on the drawings, the bidders selections shall be clearly stated in the proposal. I .P ; I - .) . I. - EL 3.2 Primary components. For the purpose of this specification, the M73 impulse cartridge (Dr cartridge retainer, and chamber, shall not bithdraw be$nd the safety pinwhensubjected to a
12、n axial.load of 2:to 220 pounds. Application of the load shall - not, ,. . cause . permanent . deformation of the safety pin. . . . . i. . _. : I : ,. . .i . . i I* 3.5 Breakaway.torque; -The initiator chamber and assembly shall contain chips, dirt, greak, mst, corrosion or other foreign _. might be
13、 injurious to personnel handling the item. matter, 3.9 Radiographic examination. Each initiator -. .assembly shall be radiographically examined for defects ils specified in 4.4. 3.10 Component parts. All component parts shall meet the requirements of MIL-1-14802 or MIL-I46559 prior to assembly. 4. Q
14、UALITY ASSURANCE PROVISIONS 4.1 Responsibility for .inspection, Unless otherwise specified in the contract or purchase order (see 6.2), the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the
15、contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any uthe inspections set forth in the specification wher
16、e such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. a 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-I-46625C 13 W 7777706 CIL127740 7 = . MIC-I-46625C . : 4,lJ Rqsmibity far ompliaqce A
17、ll items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shail becmea part of the contractor?s overallinspection st however, this does ngt authorize submission of hwn defective material, ehher indicated or actual, nor daes -it commit the Governtent to
18、acceptance of defective material. I -. 41.2 Quality assurance terms and definitions. Reference shall be made to MILiSTD-109 4,1,3 Inspection, Inspection shall be in accordance with MIL-A-2550 and MIL-qD-453. 4.2 Inspection conditions. nless otherwise specified, all inspections shall be perhrmed unde
19、r the following defime the quality assurance terms used. conditions: a. Temperature: Room ambient 68 to 77 OF b. Altitude: Sealevel c. Humidity: 50 percent relative, max d. Atmospheric pressure: 14.7 psia . . 4,2,1 Lot. 4,2.1.1 Submission of product. Unless otherwise specified by the conFacting acti
20、vity, tormation and 4.2,1,2 Size of lot. A lot shall consist of an identifiable group of assembled initiators containing metal parts 4.2,2 Examination. One-hundred percent examination shall be performed br all critical defects. Ekunination for major and minor deks shall be pehrmed in accordance with
21、 the classification of defcfs. Fout power (4X) magnification may be used fir inspection of such dekts as burr and breign matter. 4,2.2.1 Cartridge, Impulse M73, Drawing 8594157, covering a detail of Drawing 8595821 or 10524101, identification of lots shall be in accordance with MIL-STD-105. assembli
22、es produced by a homogeneous process and loaded with one lot of accepted cartridges. Characteristic Critical 1 2 3 Major 101 Minor 201 De-fkct Method of IGpection . Visual Mixed cakidges Metal defective Visual Marking missing, incorrect, or illegible Visual I. . Visual , , Foreign matter present Cas
23、e scratched OK dented Visual , 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-I-4b625C 13 = 7777706 0427741 7 MIL-I-46625C 4.2.2.2 Assembly, Drawing 10524101 or 8595821 less Drawing 8595404,8593013,8593014, and 8359536. Characteristic Defect
24、Critical 1 Mixed initiators 2 3 4 O-ring missing Major 101 Thread damaged 102 Foreign matter present Initiator not in cocked position Safes pin missing or improperly engaged Minor Method of Inspection Visual Visual Visual Visual Visual Visual 201 O-ring not lubricated Visual 4.2.2.3 Assembly, Drawin
25、g 10524101 or 8595821, less Drawings 8593014 and MIGC-550Yll. Critical 1 Cartridge loose 2 Cartridge retainer loose 3 4 Major None defined Minor None defined Metering groove of retainer missing Elongated hole of cartridge retainer missing 4.2.2.4 Assembly, Drawing 10524101 or Drawing 8595821. Critic
26、al 1 Location of cartridge retainer 2 Any part missing 3 Improper assembly 4 Major 101 102 Height of cap, max 103 Minor Foreign matter in gas port Length from cap boss face to gas port face, max Cap set screw missing, loose or above flush 201 tal length, max 202 Location of marking incorrect 203 204
27、 Protective cap missing Protective finish inadequate or defective Visual/Manual Visual/Manual Visual Visual Gagelx-ray Visual/x-ray Visual/x-ray Visual Gage Gage Visual Gage Visual Visual Visual 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I
28、-4bb25C 13 I 777770b 0427342 O I MIL-1-46625C 4.2.2.5 Box, Fiberboard (Inner) Packing Ammunition, Drawing 8796541. Characteristic Defect Method of Inspection 0 Critical None defined Major None defined Minor 201 202 203 204 205 206 207 208 Gap between body and cover, max Contenis loose Metal ends loo
29、se or distorted Cut or damaged through all impregnated layers Marking missing, incorrect, or illegible lpe incomplete, tom, or badly wrinkled Length of tear tab, min Color of tape incorrect Manual Manual Manual Visual Visual Visual Visual Visual 4,2,26 Box, Packing Ammunition, Drawing 8796542. Criti
30、cal None defined Major None defined Minor 201 Contents loose Manual 202 Strapping missing, loose, broken, or improperly assembled ManuallVisual 203 Contents of box exposed Visual 204 Box damaged Visual 205 Marking missing, incorrect, or illegible Visual . 206 Number of units incorrect Visual 4,2,2.7
31、 Box, Fiberboard (Outer) Alternative Packing Ammunition, Drawing 9216934. Critical None defined Major None defined Minor 201 Contents loose 202 Box broken or damaged 203 204 205 ?ape incomplete Number of units contained incorrect Marking missing, incorrect, or illegible Manual Visual Visual Visual V
32、isual 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.2.3 Inspection testing. The tollowing tests shall be performed in accordance with 4.3. 4.2.3.1 Breakaway torque. Each assembly shall be subjected to the breakm torque test of the threaded join
33、t between the cap and the chamber. Failure of any assembly to comply with 3.5 shall be cause for rejection of the assembly. 4.2.3.2 Residual magnetism. Each initiator shall be subjected to the test for excessive residual magnetism as specified in 4.3.2. Failure of any initiator to comply with 3.6 sh
34、all be cause for rejection of the initiator. 0 4.2.3.3 Ffring pin release. The initiator pin of each subassembly shall be subjected to the firing-pin release test. Failure of any subassembly to comply with 3.3 shall be cause for rejection of the subassembly. 4.2.3A Initiator pin security. The initia
35、tor pin of each subassembly shall be subjected to the initiator pin security test. Failure of any unit to comply with 3.4 shall be cause for rejection of the subassembly. 4.2.3.5 Functional tests. The following tests shall be p.erformed by the Government. 4.2.3.5.1 Ballistics. Twenty-one units shall
36、 be tested to determine compliance with 3.7.1. The units shall be temperature conditioned as provided in table II and 4.3.5.2. Failure of any unit to comply with 3.7.1 shall be cause for rejection of the lot. TABLE II. Conditioning tempemaire. I lmperature (OF) l Sample size -60 to -70 65 to 75 195
37、to 205 7 7 7 4.2.3.5.2 Retest. There shall be no retests. 4.2.3.5.3 Test failure. If a test failure is attributable to an assignable cause, excluding the test initiator, the original test results shall be discarded and that test reconducted. 4.3 Test methods and procedures. 4.3.1 Breakaway torque. A
38、 torque wrench set at the torque requirement specified in 3.5 shall be used in conjunction with a fixture to determine the adequacy of the joints. The chamber shall he secured in an air vise and the torque shall be applied to the cap. 4.3.2 Residual magnetism. The assembly shall be tested for excess
39、ive residual magnetism using an approved compass in an area free of local magnetic effects by placing the assembly 5 inches from the end at the same height as the compass, in a north-south horizontal position (cap end at south) with the compass set in an east-west heading. The assembly shall be move
40、d at a speed not greater than 10 feet per minute past the compass for its entire length, rotated 90 degrees in the horizontal position about its longitudinal axis, and moved slowly back past the compass. This procedure shall be repeated for each 90 degrees rotation of the assembly for four full pass
41、es. 4.33 Firing pin release. The subassembly shall be secured in the fNture. A pull shall be applied to the initiator pin in the longitudinal direction in conjunction with the fNture which registers the amount of pull. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without li
42、cense from IHS-,-,-MIL-I-Ybb25C 13 a 999990b 0427944 4 i -3 MIL-I-46625C 4.3A Initiator pin security. The subassembly shall be secured in the fixture with the safety pin in place. A pull shall be applied to the initiator pin in the longitudinal direction in conjunction with a fixture which registers
43、 the amount of pull, The test shall be performed with thesafety pin in both positions. a 4.3.5 hnctional. 4.3.5.1 Ballistics. The test sample shall be rigidly supported in the fixture. The sample shall be tested within 5 minutes after removal from the conditioning chamber, When this time limit is ex
44、ceeded, the sample shall be reconditioned in accordance with 4.3.5.2. Required pressure-time readings shall be taken as specified in 3.7.1. 4.352 Temperature conditioning. Each assembled initiator shall be conditioned for a period of time not less than 4 hours nor greater han 24 hours. When recondit
45、ioning initiators at -60 OF, all condensation shall be removed from the interior surfaces before returning the initiator to the conditioning chamber. 4.4 Radiographic examination. All assembled initiators shall be radiographically examined in accordance with MIL-STD-453, with the exception that an a
46、ssembled M3A2 initiator will be used br the penetrameter. Any observable imperfections in components or assembly shall be cause for rejection. The initiators shall be positioned for the most revealing exposure, with the long axis of each assembly perpendicular to the rays of the X-ray machine, All i
47、nitators shall be identified with serial numbers prior to X-ray examination. The serial numbers shall be in consecutive numerical order beginning with the number O01 in each production lot. Any missing serial numbers are to be identified on the X-rays. The initiators shall be arranged on boards or t
48、rays in consecutive order and each radiograph shall carry a permanent identification of the units displayed thereon. The radiographic plate identification shall include item nomenclature, the complete lot number assigned to that lot, the span of serial numbers displayed, and the contract number. Rad
49、iographs of the entire production lot shall accompany the ballistic sample to the activity conducting the production lot acceptance test. Defective initiators found during X-ray review are to be marked on the X-ray prior to shipment and those defective items shall be removed from the production lot. Film interpretation of the radiographs shall verify the presence and correct positioning of the following parts: a. O-
