1、L I Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document, should be addressed to: Commander U.S. Army ARDEC, ATTN: SMCAR-BAC-S, Picatinny Arsenal, New Jersey 07806-5000 by using the self-addressed Standardization Document I
2、mprovement Proposal (DD Form 1426) appearing at the end of this document or by letter. h MIL-F-7111131 113 m 9999906 05748114 2 m 11 NCH- POUND( 26 May 1992 MIL-F-71131 (AR) MILITARY SPECIFICATION FIN, MORTAR CARTRIDGE: M32 This specification is approved for use by the U.S. Army Armament, Munitions
3、and Chemical Command, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers requirements and quality assurance provisions for the fabrication of the Fin, Mortar Cartridge:M32. This is a pressure vessel application. 2. APP
4、LICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of t
5、he Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS MILITARY MIL-H-6088 - Heat Treatment of Aluminum Alloys MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for STAND
6、ARDS MILITARY AMSC NIA FSC 1310 I2IsWTION STATEMFNT A Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-71131 (AR) (Unless otherwise indicated, copies of federal and military specifications,
7、 standards, and handbooks are available from the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawinqs, and publications. The followinq other Government documents, drawings, and publications form a part of this do
8、cument to the extent specified herein. unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS (See 6.5) U.S. ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) 12944199 - Fin, Mortar Cartridge:M32 (Copies of other Government documents, drawings and publi
9、cations required by contractors in connection with specific acquisition functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.1.3 Non-Government publications AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM Method E-8 - Tension Testing of Metall
10、ic Materials ASTM Method E-340 - Macroetching Metals and Alloys Technical society and technical association specifications and standards are generally available for reference from libraries. They are also distributed among the technical groups and using Federal Agencies. the text of this document an
11、d the references cited herein the text of this document shall take precedence. Nothing in this document, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 2.2 Order of precedence. in the event of a conflict between 3. REQUIREMENTS 3.1 Materials.
12、Materials shall be in accordance with the applicable drawings and specifications. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-71131 13 E 9999906 0574836 6 MIL-F-71131 (AR) 3.2 Components and assemblies. The components and assemblies shall
13、 comply with all requirements specified on drawing 12944199 and associated drawings and with all requirements specified in applicable specifications and standards. 3.3 Mechanical properties. Mechanical properties shall be in accordance with the requirements of the applicable drawings and specificati
14、ons. 3.4 Heat treatment. Heat treatment equipment, procedures and controls shall be in accordance with MIL-H-6088. The extrusion stock shall be solution heat treated in such a manner as to avoid overheating of the material or cracking during quenching. 3.5 Hydrostatic test. Each tail fin shall be ab
15、le to withstand a hydrostatic load in accordance with drawing 12944199 and tested IAW 4.5.5. Each tail fin that successfully meets the requirements of this test shall be permanently stamped in accordance with drawing 12944199. 3.6 Data requirements. The contractor shall generate data in accordance w
16、ith the requirements of the data item descriptions cited in 4.5.4.2 and 4.5.5. Ammunition data cards are required (see section 6 and MIL-STD-1167). All data cards shall list drawings and revisions for components and assemblies. 3.7 First article. This specification makes provisions for first article
17、 inspection. Requirements for submission of first article samples by the contractor shall be as specified in the contract and by 4.3 herein. (See 6.2) on the applicable drawing, referenced specification and the following sub-paragraphs. 3.8 WorkmanshiE. The requirements for workmanship are as shown
18、3.8.1 Metal defective. Soundness of the material shall be as required by the applicable material specifications. Fins shall be homogeneous and free from cracks, laminations, porosity, pipe type or other deleterious defects. 3.8.2 Threads. Threads shall be full and undamaged for the entire minimum le
19、ngth or depth as required by the applicable drawings. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-71131 13 9999906 0574837 8 MIL-F-71131 (AR) 3.8.3 - Riirr. No part. shall have a burr which might adversely affect the assembly or function
20、of the round or which might be injurious to personnel handling the item. 3.8.4 -I General. All parts and assemblies shall be free of burrs, chips, dirt, grease, rust, corrosion, and other foreign material that may adversely affect fit OL function. The cleaRing method used shall not be injurious to t
21、-he parts nor shall any parts be contaminated. All packaging materials and the contents to be packaged therein shall be neat, clean and shall exhibit good worknianship. 4. QUALITY ASSURANCE: PROVISIONS 4.1 -I_- Responsibility - for - inspection. Unless otherwise specified in the contract- or purchas
22、e order, the contractor is responsible for the performance of al 1 inspection requirements (examinations and tests) as specified herein. ExceFt as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspect
23、ion requirements specified herein, unless disapproved by the Government. The Government- reserves the right to perform any of the inspections cet forth in the specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 4.1.1 Responsib
24、ility for compliance. All items shall meet all _-_l_l_l- requirements of Sections 3 and 5. The inspections set- forth in this specification shall become a part of the contractors overall inspection system or quality prograrr. The absence of any Inspection requirements in the specificatjon shall not
25、relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, i5 an acceptable practice to ascertain conformance to requirements
26、, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government t.o accept defective niaterial. 4.1.2 - General provisions. - The requirements of MIL-A-48078 form a part of the quality assurance provisions of this specification
27、. Reference shall be niade to MIL-STD-109 to define quality assurance term used herein. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-F-7LL3L 13 m 9999906 0574L T m MIL-F-71131 (AR) 4.2 Classification of inspections. The following types of
28、a. First Article Inspection (see 4.3) b. Quality Conformance Inspection (see 4.4) inspections shall be conducted on this item: 4.3 First article inspections. 4.3.1 Submission. The contractor shall submit a first article sample as designated by the Contracting Officer for evaluation in accordance wit
29、h the provisions of 4.3.2. shall consist of the following items in sample quantities as indicated: The first article sample Following nominal cropping, one full cross-sectional specimen suitable for macroetch shall be selected from the front and rear of each extrusion bar. - QTY Components To Be Ins
30、pected 10 Fins completely machined including flash holes 10 Fins completely machined less the flash holes 2 Flat tensile specimens 2 Round tensile sDecimens 2 Microstructure Specimens 4.3.2 Inspection to be performed. See MIL-A-48078 and Table I specified herein. 4.3.3 Rejection. See MIL-A-48078. 5
31、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I- V) w I- U O z 0 t d ?j X Lu MIL-F-iLL3L 13 M 9999906 0574839 3 rl a3 4-T m MM N N o o m mm tu aia, N vN a (d ai a, O O rl 4 c 2 C rd .-I a k rd ai k a C a ci C O k Ici k a C O -4 Lo 7 k ci X w u m -
32、c, m a, ci G u c, a, O k o 2 rB 2 c a d C O -ri o) CI k c X w a C O -4 c, a C -ri 5 X a, ai k +J3 mc, 00 03 k CO OUI rio UJk ai Cu ai -4 3x -. c a a, (Il ? a, A c O d h 2 s U -4 s 3 5 m Co LI Pi 4 4 c Id O P m 4 E O 6i u c 3 (Il a, u Id 4 Pi a, p: a Co TI ? b ri c w I Id O i- m rl E O 6i u z 3 6 Pro
33、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-IJLL 13 9999906 057Y820 8 MIL-F-71131 (AR) 4.4 Quality conformance inspection. 4.4.1 Inspection lot formation. Inspection lots shall comply with the lot formation provisions of MIL-A-48078. In additi
34、on, the extrusion lot shall consist of not more than 2000 pounds of extruded stock of the same alloy that has been thermally treated by the same method in the same furnace equipment at the same temperature and time in one unchanged process regardless of the solution heat treating method utilized. Ea
35、ch extrusion lot representing material that has been solution heat treated after extrusion, must be solution heat treated at the same time in the same furnace using the same temperature and time in that furnace. The extrusion lot thus constituted shall be the basis for selecting the sample blanks fo
36、r the microstructure and tension tests herein after prescribed. 4.4.2 Examinations and tests. a. Classification of characteristics. Quality conformance examinations and tests are specified in the following Classification of Characteristics paragraphs. The contractors quality program or detailed insp
37、ection system shall provide assurance of compliance of all characteristics with the applicable drawing and specification requirements utilizing as a minimum the conformance criteria specified herein. Where cited herein, attributes Sampling Inspection shall be conducted in accordance with Table II be
38、low, using the inspection levels cited in the Classification of Characteristics paragraphs: 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-7LL3L 33 999990b O574823 T = * . Table II. LOT SIZE 2 to 8 9 to 15 16 to 25 26 to 50 51 to 90 91 to 15
39、0 151 to 280 281 to 500 501 to 1200 1201 to 3200 3201 to 10000 10001 to 35000 35001 to 150000 150001 to 500000 500001 and over MIL-F-71131 (AR) Attributes sampling inspection INSPECTION LEVELS I II III IV - - - - * * * * * * * * * 1250 1250 1250 1250 1250 1250 * * * * * 125 125 125 125 125 125 315 3
40、15 500 500 * * * 32 32 32 32 32 80 80 125 125 125 200 200 * 13 13 13 13 13 32 32 50 50 50 80 80 125 125 V 5 5 5 5 13 13 20 20 20 32 32 50 50 50 50 - VI 3 3 3 3 5 5 8 8 13 13 13 13 13 13 13 - Numbers under inspection levels indicate sample size; asterisks indicate one hundred percent inspection. If s
41、ample size exceeds size, perform one hundred percent inspection. Accept on zero and reject on one or more for all inspection levels. b. Alternative quality conformanLe provisions. Unless otherwise specified herein or provided for in the contract, alternative quality conformance procedures, methods o
42、r equipment, such as statistical provess control, tool control, other types of sampling plans, etc., may be used by the contractor when they provide, as a minimum, the level of quality assurance required by the provisions herein. Prior to applying such alternative procedures, methods or equipment, t
43、he contractor shall describe them in a written proposal submitted to the Government for evaluation (see 6.11). When required, the contractor shall demonstrate that the effectiveness of each proposed alternative is equal to or better than the specified quality conformance provision(s) herein. In case
44、 of dispute as to whether the contractors proposed alternative(s) provides equivalent assurance, the provisions of this specification shall apply. All approved alternative provisions shall be specifically incorporated into the contractors quality program or inspection system, as applicable. 8 Provid
45、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. Y I- o w I- d MIL-F-71131 13 9999906 0574822 1 H o Lo b . c, (B a, E- 4 Co o OO O O 4 a a, c a, o a, C O z 7- CI 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from I
46、HS-,-,-I- (B u1 L- U O Z t- 0 a z Q X u1 4 (d -4 a m 7c.J != .T (B v) a o u- Odn? MIL-F-71131 13 rn 9999906 O574823 3 rn a, CC O0 zz m o -4 c, -4 k u -n 01 kl 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-8 c-i z H h z O Cl ,% ti ti J 4 3 O ril
47、-1 LL O r-i + U LLI I v) I I- V) Lu I- U O z 0 k- Q z 5 x Lu MIL-F-7LL3L 13 999990b 0574824 5 m Co M M oo O -1 o 3 a a, r; -4 iH a, a a, c O z c, a o? -4 a, c c, o? 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-71131 13 9999906 0574825 7 m
48、 O 4 LL c W I VI 7 W n L W n 3 m 3 W vi vi 6 n: W I I b- X W Z i3 - N m 5: aJ tr a .li k c, k 5 u k m ci k O r . z 6 0 9 4 c 2 CJ - OW oc ?Ao 0s O o O0 Hk k O o oc, kH k 4 -I r-i rl HH H c 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-71131 13 99999Ob 057482b 7 I I T I CJ m z QJ Oi a k c1 k a u k a c, k O r: c G-l Il . .Il .-? ;. w d . Cu PJNNNNN NN NCJ “ m mmmmmm mm mm mm . .o . 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-F-7LL3L 13 999990b
