1、MIL-K-71129 13 m 9999906 05749b9 9 m MIL-K-71129 (AR) 26 May 1992 MILITARY SPECIFICATION KIT, REFURBISHMENT, FOR CARTRIDGE, 81MM, PRACTICE, SHORT RANGE, M880 LOADING, ASSEMBLING AND PACKING t This Specification is approved for use by the U.S. Army Armament, Munitions and Chemical Command, and is ava
2、ilable for use by all Departments and Agencies of the Department of Defense. ? 1. SCOPE a 1.1 Scope. This specification covers the loading, assembling and packing for the refurbishment kit for Cartridge, 81MM Practice, Short Range, M880. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specif
3、ications and standards. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and
4、 supplement thereto, cited in the solicitation (see c - 0.L). SPECIFICATIONS MILITARY MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this do
5、cument, 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 Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. Provided by IHSNot for ResaleNo reproduc
6、tion or networking permitted without license from IHS-,-,-MIL-K-71129 13 m 9999906 057q970 5 m MIL-K-71129 (AR) STANDARDS MILITARY MIL-STD-109 - Quality Assurance Terms and Definitions MIL-STD-1235 - Single and Multilevel Continuous Sampling Procedure and Tables for Inspection by Attributes (Unless
7、otherwise indicated, copies of federal and military specifications, standards and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawinqs and publications. The following other Gov
8、ernment documents, drawings and publications form a part of this specification to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation. DRAWINGS (See 6.5) U.S. ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER ( ARDEC )
9、 12944145 - Packing for Box, Fiberboard, Inner for 12944148 - Packing and Marking for Box, Fiberboard, 12944155 - Packing and Marking for Box, Wood, Wirebound for Refurbishment Kit, M880 Outer for Refurbishment Kit, M880 Refurbishment Kit, M880 (Copies of drawings and publications and other Governme
10、nt documents required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) text of this specification and the references cited herein, for associated detail specifications, specification sheets o
11、r MS standards) the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 2.2 Order of precedence. In the event of conflict between the (except 2 Provided by IHSNot for
12、ResaleNo reproduction or networking permitted without license from IHS-,-,-e . . MIL-K-7L129 13 9999906 0574971 7 MIL-K-71129 (AR) 3. REQUIREMENTS 3.1 Material. Materials and parts shall be in accordance with applicable drawings and specifications. The fuzes (M775), obturators, and ignition cartridg
13、es (M985) shall be from lots that meet their respective specification requirements and have been accepted by the Government. 3.2 Obturator. The obturator shall seat flush or below flush when properly assembled to a serviceable carrier round. 3.3 Breech plug firing pin position. The firing pin shall
14、be flush to below flush relative to the rear face of the breech pluq - after assembly against the propelling charge. 3.4 Fuze striker arming indicator markinq. The red arming indicator on the forward section of the fuze striker shall not be visible when the striker is in the safe position and shall
15、be readily visible when the striker is in the armed position. 3.5 Increment pluq. The increment plug shall be able to be easily inserted and be firmly seated in the increment plug hole of the projectile body, and be removable with an outward pull of 14 2 8 pounds on the increment plug pull tab when
16、pulled perpendicular to the projectile body. 3.6 Provinq qround test. The refurbished cartridges shall comply with the following requirements when tested in accordance with 4.4.3.1 and 4.5.1. 3.6.1 Misfires. The refurbished cartridges shall not fail to fire from the weapon. 3.6.2 Short rounds. No re
17、furbished cartridges shall have a horizontal range less than 80 percent of the average horizontal range (calculated without the short rounds). 3.6.3 Metal parts separation. There shall be no metal parts separation in the gun bore or in flight. 3.6.4 Ranqe and deflection precision. The refurbished ca
18、rtridge shall have a horizontal range probable error (PEr) less than.10 meters for all zones. The probable error deflection (PEd) shall be less than 10 meters for all zones. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-K-71129 13 999990b 057
19、LI972 9 MIL-K-71129 (AR) 3.6.5 Duds. The fuze shall function upon ground impact of the refurbished cartridge. 3.6.6 Premature burst. There shall be no burst in the gun bore or in the first 15 meters of flight. 3.6.7 Weapon. The refurbished cartridge shall not be the cause of weapon damage. 3.6.8 Fuz
20、e siqnature. The fuze, when ballistically fired, shall provide both a visible and audible signature at a minimum range of 1500 meters from the observer. Only a visible or only an audible signature upon impact is not sufficient to meet this requirement. used for this assessment. Visible is defined as
21、 flash or smoke or both flash and smoke. Visual and audio enhancement equipment shall not be 3.7 First article . This specification makes provisions for first article inspection. Requirements for the submission of first article samples by the contractor are specified in the contract and by 4.3 herei
22、n.(See 6.2) burrs, chips, sharp edges, cracks, unblended radii, surface defects, dirt, grease, rust, porosity, warpage, burn marks, checks, blisters, excess flash, corrosion products and any other foreign matter. Any cleaning method used shall not be injurious to any part nor shall the parts be cont
23、aminated by the cleaning agents. Surface coating shall be continuous except for a few slight scratches not exposing base material. The loading and assembly operations shall be performed in a thorough, workmanlike manner consistent with the best practices of the industry. All required markings shall
24、be neat and sharply defined. 3.8 Workmanship. All parts and assemblies shall be free from 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements
25、(examinations and tests) as specified herein. Except 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 inspection requirements specified herein, unless disapproved by the Government. The Government res
26、erves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-K-
27、71129 13 9 9999906 0574973 O MIL-K-71129 (AR) I i 4.1.1 Responsibility for compliance. All items shall meet all 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 program. I inspection requirem
28、ents in the specification shall not 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, is an acceptable practice to a
29、scertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. 4.1.2 General provisions. The requirements of MIL-A-48078 lm The absence of any I form a part of
30、the quality assurance provisions of this specification. Reference shall be made to MIL-STD-109 to define quality assurance terms used herein. 4.2 Classification of inspection. The following types of inspections shall be conducted on this item. a. First article inspection (see 4.3) b. Quality conform
31、ance inspection (see 4.4) 4.3 First article inspection. 4.3.1 Submission. The contractor shall submit a first article sample as designated by the Contracting Officer for evaluation in accordance with provisions of 4.3.2. The first article sample shall consist of the components in the quantities indi
32、cated in Table I. 4.3.2 Inspections to be performed. See MIL-A-48078 and Table I I specified herein. I l t 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-K-71127 13 7777706 0574774 2 MIL-K-71129 (AR) 4.3.3 Rejection. See MIL-A-48078 and the fi
33、rst article ballistic test shall be rejected if: a. Two or more misfires occur. b. Three or more duds occur without any misfires or if two or more duds occur with one misfire. c. One or more short rounds occur. d. e. One or more metal parts separation occur. f. Precision requirements are not met. (7
34、0 degrees F One or more premature bursts occur. conditioned samples only). 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-N o 4 c W I v) ci-k CO om a,ow 7 EN -=F c a L4-r o um.rlc, CNci c Hrl m a, CE MIL-K-71129 13 m 9999906 0574975 4 m k O w k a,
35、 c c H . a k m O QO kW aal QX -ri cri - -4 XM O c ka, OE wc rn Fi -4 ea -4 k x7 w uw ma, 2 acr E PIP: w o z W n u L W cr O I c W =z z I- u W II) n 9 a z z c 0 a 9 k s u ci rnrn cia, uci 0) Ud ad 57 a 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
36、 MIL-K-7LL27 13 m 9997706 0574776 b m J ? N L O N b- I VI w Cu m N N q di B I4 4 3 O H H H MIL-K-71129 13 m 999990b 0574979 1 m d LL O 4 w I m HHH H H H HH HHH H H H HH HHH H H H HH k a, Llk O sa, a, ci dl 11 - m W I- O z - Provided by IHSNot for ResaleNo reproduction or networking permitted without
37、 license from IHS-,-,-rl O 5-l L ti W I v) G u a, a, k m . b-l 3 - W o z W W L W E O O I c W I Z 0 a z c a, E al k u C w . tri 7 2; u E O a 4 k Q; (r: c -Fi 4-4 O9 Ul ma u 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Z O E u w pi B z H w u z 4
38、5: p: O Eri z O u w E GI O H H =s . a k m O A k a,O -4 x -rl OM m . oc mu MIL-K-7LL27 L3 9777706 0574783 3 = d dd d m 7 o TI 3 m 7 o Ti 3 4 FI4 o3 m mm m . .* . dp O O rl HH HI+ HH 3 TY a, c -ri w a, a a, k a, x -ti k ci (Il a, N 3 w c; O a l-l A -rl u) -li Fi c -cl x k m E a a, x u m a h k Fi ac o
39、*rl ko -ri E ow cici rl g -2 cG alal Gc; O0 aa w m rn x kk a3 a ;r o Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-K-71129 13 9997906 0574985 7 I 4i-i i-I aa a 77 7 lnm ln .4 -4 .4 + 3 i-Id am 77 com -4 -4 33 -id rl mm m .e HH H HH H HH H +3 5
40、a, ka) a, am 17 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-,-I LL O 4 ti I v) O a, a, a Oc, o .li zx xc, 0s E kG om w -4 ma, Q trk c7 -4 ru xai m7 CO( -rl 13 I- MIL-K-71129 13 9999706 057498b 9 a, ?I -rl ci o m E-i e 400 m mn . e. H H H a a, c;
41、-?i w 0 a a, c O z k a, .rl k k m Q a a, m m E m P Lo k a, 4 d -4 ICC k O tn k Q u m a CB 21 k u k m- -4 ni ni x .+ o ni 18 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-K-7LL29 13 m 9999706 0574987 O m !x a - a. n 33 33 a a, c -ri W a, a a a,
42、G w ai a Lo x O SI D c -Fi m O a X a, a, Lo O O Li o - 4 ri h k ai a O k aJk o ka 3E D u -4 cai -rl rB k a CO RI -4 a, a rl mai aim Qd Lo-rl RIRI rl CirG D G3 Lo c a,-4 rl gE a, a, ka- Aa Fi-riLi c c RI c x k-rl x RI Lo o O O 0006C0ai00 2 z m umz gam ap 19 Provided by IHSNot for ResaleNo reproductio
43、n or networking permitted without license from IHS-,-,-MIL-K-7LL29 13 9999906 0574988 2 = a, I+ -4 ci umFI a. r rl m * . . k cic, Q, oc x Ca, ci FlczIIi a *d c m c E x k m E k O O 20 d 7 rei cn m a, u u 3 m Q, G ci O c, k O -4 k a W a, E k O W kt3 oie a.4 ci aim a ci ci ow cc m d dm mci su ma, rei *
44、a, U Qi vi 3 ai n CI O c lm E c u r E n n o 3 u L 1 ? Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I l MIL-K-71129 13 W 9999906 0574989 4 MIL-K-71129 (AR) 4.4.3 Testing. 4.4.3.1 Provinq qround test. The cartridges shall be observed for the followi
45、ng characteristics: a. b. d. e. f. g* h. C. Misfires, major defect (see 3.6.1) Duds, major defect (see 3.6.5) Short rounds, special defect (see 3.6.2) Premature burst, critical defect (see 3.6.6) Metal parts separation, special defect (see 3.6.3) Precision, major defect (see 3.6.4) Weapon damage, ma
46、jor defect (see 3.6.7) Proper impact signature, major defect (see 3.6.8) 4.4.3.1.1 Observation criteria. 4.4.3.1.2 Samplinq and acceptance criteria. Testing shall be as specified in 4.5.1. b and c of 4.5.1.1 combined: The lot shall be rejected if in sections a, a. Two or more misfires occur. b. c. O
47、ne or more short rounds occur. d. One or more premature bursts occur. e. One or more metal parts separation occur. f. Precision requirements are not met, at ambient temperature (70 degrees F). g. If the weapon is damaged by abnormal wear of firing pin, or caused by excessive pressure. h. Two or more
48、 improper impact signatures. to 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. submit for approval inspection equipment designs in accordance with the terms of the contract. measurements instead of attributes data are preferred in order to facilitate the use of statistical process control. See section 6 of MIL-A-48078 and 6.2 herein. Three or more duds occur without any misfires or if two or more duds occur with one misfire. 4.4.4 Inspection equipment. The i
