1、MIL-F- 5 O 49 5A ( PA ) 5 November 19 75 SUPERSEDING MIL-F- 5 O 4 9 5 28 April 1970 MILITARY SPECIFICATION FIRING DEVICE, PRESSURE RELEASE TYPE. M5 AND M5 INERT ASSEMBLY PARTS FOR AND LOADING, ASSEMBLING AND PACKING *This specification is approved for use by all Departments and Agencies of the Depar
2、tment of Defense. i. SCOPE 1,l This specification covers the parts for, loading assembling and packing for one type of firing device de- signated as Firing Device, Pressure Release Type, M5 and M5 Inert Assembly. 82. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of
3、invitation for bids, or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-P-116 - Preservation, Packaging, Methods of MIL-P-12951 - Primer, Percussion, M39A1, Loading, Assembling and Packing MIL-A-48078 - Ammunition, Standard Quality
4、Assur- ance Provisions, General Specifica- tion for *STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables For Inspection by Attributes (ABC-STD-105 ) PSC: 1375 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-5049.5A (PA) #(For mean
5、ing of asterisks (*) see 6.5). *DRAWINGS U.S. ARMY PICATINNY ARSENAL 2128139 - Package Shipping and Storage (For 24 Firing Devize, Pressure Release Type, M5) 2816287 - Pack Shipping and Storage (Por 96 Firing Device, Pressure Release Type M) 8799108 - Packing and Marking for, Firing Device, Pressure
6、 -Release, ,Type, M5 and M5 Inert 9249244 - Firing .Device, Pressure Release Type, M5 and M5 .Inert Assembly (Copies of specifications, standards and drawings required by contractors .in connection with specific procu?ement functions should be obtained from the procuring .activity or as directed by
7、the Contracting Officer). * 3. REQUIREMENTS 3.1 MaterLals. - Materials and parts shall be in accord- ance with applicable drawings and specifications. 3.2 Assemblies. - The assemblies shall comply with all requirements specified on Drawing (dwg. ) 9249244 and with all requirements specified in appli
8、cable specifications. Spring embrittlement. - Springs manufactured for use in this assembly shall be,free from embrittlement as evidenced by not fracturing when extendedto the point of minimum permanent distortion. 3.3 3.4 Non-fwictioninq. - The firing device shall not func- tion when a load of 5 po
9、unds (lbs), maximum (max,) is applied to the release plate. 3.5 Underwater functioning. - The firing device shall function underwater. (This requirement is not applicable to the M5 inert item.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-
10、50475A 13 777770b 0327708 7 I MIL-F-50495A (PA) s3.6 Workmanship. - All parts shall be fabricated and loaded in a thorough, workmanlike manner, and all manufacturing processing and assembly operations shall be correctly performed. The parts shall be clean and free of burrs, sharp edges, un- blended
11、radii, surface defects, chips, dirt, grease and oil (except where specifically required), corrosion products and other foreign matter. The cleaning method used shall not be injurious to any part, nor shall the parts be contaminated by the cleaning agent. Exterior surface coatings shall be con- tinuo
12、us except for a few lightscratches not exposing base material. All required markings shall be neat and sharply defined . 3.7 First Article Inspection. - The specification contains technical provisions for first article inspection. for the submission of first article samples by the contractor shall b
13、e as specified in the contract. Requirements 4. QUALITY ASSURANCE PROVISIONS *4.1 Responsibility for inspection and standard quality assurance pYovisons. - Unless otherwise specified herein or in the contract, the provisions of MIL-A-48078 shall apply, and are hereby made a part of this detail speci
14、fication. *4.2 Classification of inspection, - The following types of inspection shall be conducted on this item. a. First article inspection b . Quality conformance inspection *4*3 First article inspection 4.3.1 Submission. - The Contractor shall submit a first article sample as designated by the C
15、ontracting Officer. The first article sample shall consist of 125 complete assemblies and thirty-two (32) complete sets of parts and sub-assemblies ($.e., 32 each of every component and sub-assembly). article shall be evaluated in accordance with the provisions of 4.3.2 and 4.3.3. The first 4.3.2 In
16、spections to be performed. - See MIL-A-48078 and The inspections paragraphs 4.4.2 and 4.4.3 specified herein. listed in 4.4.2.1 through 4.4.2.16 may be inspected for Critical and Major Defects only. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-f
17、lIL-F-50475A 13 m 7777906 0327707 7 MIL-F-50495A (PA) 4.303 Rejection. - See MIL-A-48078. s4.4 QUALITY CONFORMANCE INSPECTION s4.4.1 Inspection lot formation. - Inspection lotsshall comply with the lot formation provisions of MIL-A-48078. addition, inspection lots of firing devices shall contain: fr
18、om one manufacturer. from one manufacturer. In a. Parts from not more than one interfix lot number b. Primers from not more than one interfix lot number 84.4.2 Examination. - See MIL-A-48078. Unless otherwise specified in the Classification of Defects and Test Tables, sampling plans for major and mi
19、nor defects shall be in accord- ance with MIL-STD-105, Inspection Level II. Equipment neces- sary for the performance of the inspections listed shall be in accordance with. 4.4 . 4. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c L O c I- W t c Q c
20、 s ci al u- m v c alal8 m m 3 alal3 ul mmul mmul .- m 0.- 9 m.- =a =a O u al c n m n u .- c P m u e v C P . - h; Z y o sw Yw OL tual LS 0.- c- al w al c L O an o- - or oc v) ts - OY au L O s3 QW CT 2 52 o om0 umn. u-u-u- O00 LI-. alalu ucis alalal E EU - m m- nau 5 P h m k! h u Y) N i2 e d i? s E Pr
21、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-n 2 a Y m QI =r O m I LLi I A I - P Y P w ta 8 I- oll um Y Z O i= !k 4 4 VI W 6 ci w W 3 c c n YI .I u! M Y Y? M mM a- a .- E *u, m E P c c, S u) c, Y L 0 C L c O L O a n u) rc S O .- c m u* c, .- c .- L
22、o c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-50q75A 13 W 7777306 0327720 8 m I I rl (d s m 2 rl I CU Cu “u3 M MMMM . . rl cdF9 o . . . . . . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
23、,-,-8 c I- W W i7 c n 2 vi -cc ccc . mmm mmm 777 777 vivivi vivivi .- .- .- .d .- .- -cc mmm 7s7 vivivi .- .- .- MMM MMM Ny- MMM O ci al - - 2 m u m U ci al Y v m U c OL u !fi to no cio L vi .- o Wal s o .- s - aJs U al.- ocinn u- x La, Lcial o LUT - alci m o s 0- u-OI U al S U -al al c as o alu cia
24、lal SL cio cou -ss n- S w-0 o no! .- ci a no E al al .- vi w nvi o nL U al I u Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I ri 8 rl I a k cd O Q k a, P 4 Frc w :o m M r( (u a- a- * . . cucu cu cucu D MM M MM M . . XN e O0 o a-* =t . O0 o XX X mm
25、 O DU o O0 ri . -CI o ci O o r: rl 8 rn a, O dh krl rl !J2 o Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-d Lb O rl t; 5 W k O .cr, cd k cd m “O (u“ MMM MMM . . . 0 O00 ood a, z m m a a, ho M Provided by IHSNot for ResaleNo reproduction or network
26、ing permitted without license from IHS-,-,-Ir. O c E X v) I ! cn m m I e c I L m m U al m 9) tn - - IA :5 -i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-rl rl Y X In a, ho cd k O a d cd r( o cd pi O Cu M +i B I- 8 z c U 0 2 B O e. .* rl O0 orl Pr
27、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-50495A (PA) 4.4.3 TESTING 4.4.3.1 Spring embrittlemento- (see 3.3), Major Defect B, A sample of 30 springs shall be selected from each heat treat- ment lot. If one or more springs fail to comply wit
28、h the speci- fied requirement, the heat treatment lot represented by the sample springs shall be rejected. The test shall be performed as specified in 4.5.1, using test equipment in accordance with 4.4.4. 4.4.3.2 Torque test of firing pin spring (See dwg. 9249237). Major Defect B, - A sample of 30 s
29、prings shall be selected from each lot of springs to determine the torque at the specified angular displacement. If one or more springs fail to comply with the applicable torque requirement, the lot shall be re- jected. The test shall be as specified in 4.5.2, using test equipment in accordance with
30、 4.4.4. 4.4.3.3 Non-functioning (see 3.4) 4.4.3.3.1 Critical Defect (Not applicable to inert item). - This test shall be conducted 100 percent. Any firing device that fails to comply with the specified requirementsshall be classed defective and removed from the lot. The test shall be performed as sp
31、ecified in 4.5.3, using test equipment in accord- ance with 4.4.4. 4.4.3.3.2 Major Defect A, (Applicable to inert item). - A single sampling plan shall be used for this test in accordance with MIL-STD-15, using Code Letter J and an AQL-of 0.65 percent. The test shall be performed as specified in 4.5
32、.3, using test equipment in accordance with 4.4.4. 4.4.3.4 Underwater functioning test (see 3.5), Major Defect A,. - A single sampling plan shall be used for this test in accordance with MIL-STD-105, using Code Letter J and AQL of 0.65 percent. The test shall be performed as specified in 4.5.4 using
33、 test equipment in -accordance with 4.4.4. 4.4.3.5 Check test for possible deterioration of primers Major Defect. - If the. total elapsed time between the original acceptance of any primer lot and-the assembly of that lot-into the firing devices exceeds two years, or if the primers have been subject
34、ed to adverse conditions, however brief, at any 25 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-50495A (PA) to and must satisfactorily pass the check test specified in MIL- P-12951 immediately before the primer lot is assembled into the firi
35、ng device assembly. tractor on primers selected by the Government inspector at the facility assembling the prime? lot into the firing ,device assembly and shall be conducted at Government expense without cost to the contractor (see 6*4), who loaded the primers or the contractor assembling the primer
36、s into the firing device assembly. Further- more, this test shall not constitute a basis for rejection against either contractor except where deterioration has occurred as a direct result of carelessness in handling, storage, etc., permitted while the primer lot was -der the jurisdiction of e it her
37、 contract or. This test shall be performed by the con- 4.4.3.6 Heat Seal test of sealed bag (see dwg. 8799108). - Major A defect. - Sampling,. acceptance criteria and test pro- cedures for this test shall be as specified in m-p-116. *4.4,4 Inspection Equipment. - The inspection equipment required to
38、 perform the examinations and tests prescribed herein IS -described in the “Paragraph Reference/Inspection Method“ column ,in the tables starting with paragraph 4.4.2.1, and the test method paragraphs (see 4.5). The contractor shall submit for approval, inspection equipment designs in accordance wit
39、h the terms of the contract. See Section 6 of MIL-A-48078, and section 6.2 herein. “4.5 Test Methods and Procedures 4.5;,1 Spring Embrittlement. - The spring shall be pulled to the minimum point of permanent distortion by an approved method. (Springs so tested shall be scrapped). be determined at th
40、e specified angular displacement. Observation shall be made for compliance .with the applicable drawing requirement. (Destructive) 4.5.2 Torque test of firing pin spring;, - The torque shall . “4.5.3 Non-Functioninq. .- The firing device shall be mounted to a suitable test fi xture. The specified re
41、straining load shall be applied to the release plate. The safety pin shall be removed leaving the interceptor pin in place. for actuation of the firing pin. The .firing device shall be classed defective if the firing pin is released. (Non-destructive) Observation shall be made 26 Provided by IHSNot
42、for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F- 504 9 5A (PA) a. Title, number and date of this specification. b. Provisions for submission of first article samples
43、. c. Provisions of MIL-A-48078. 6,2 Submission of Inspection Equipment Designs for Approval.- (see MIL-A-48078) - Sbmit equipment designs as required, to Commander, Picatinny Arsenal, ATTN: SARPA-&A-T, Dover, New Jersey 07801. of data cards shall include the following: Commander, Picatinny Arsenal,
44、ATTN: SARPA-&A-A-M, Dover, New Jersey 07801. Check Test for Possible Deterioration. - The following test is designed to prevent primers that have deterjorated from being assembled into major ammunition items. The test shall be performed on primers from each lot which have been stored under normal co
45、nditions for more than two years or under adverse conditions for any period of time. If the specification for the ammunition item into which the primers are assembled does not require that the check test be performed, the Contracting Officer should insert in the contract a provision for the per- for
46、mance of the check test. The Contracting Officer will arrange for the contractor to be reimbursed for expense incurred in his performance of the check test for possible deterioration. -Primer assemblies shall be selected from each lot for this test. 6.3 Distribution of Ammunition Data Cards. - Distr
47、ibution 6.4 6.5 The margins of this specification are marked with an asterisk to indicate where changes (additions, modifications, corrections, deletions) from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in
48、 these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodian : Preparing Activity: Project Number: 1375-A-li6 ARMY-PA Amy-PA 28 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
