1、MIL-P-70437 13 W 9797906 035Ll288 3 Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, US Arm Armament Research and Development Center, Attn. DRSMC-QA, Dover, New Lrsey 07801 by using th
2、e self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this l , document or by letter. fj -a7 -m- MIL-P-70439 (AR) 24 April 1984 MILITARY SPECIFICATION PROJECTILE, 105MM, HEAT-T, M456A1 SPIKE AND CAP ASSEMBLY This specification is approved for use by th
3、e US Army Armament, Munitions 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 contains requirements and provides quality assurance provisions for the fabrication and packing of the spike and cap assem
4、bly for HEAT-T, M456A1 Pro j ec t ile. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. Unless otherwise specified, the followinq specifications and standards of the issue llsted in-that issue of-th Department of Defense Index of Specifications and Standards (DoD
5、ISS) specified in the solicitation, form a part of this specification to the extent spec if ied here in. SPECIFICATIONS MILITARY MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for FEDERAL TT-C-490 - Cleaning Methods and Pretreatment of Surfaces For Organic Coa
6、tings FSC 1315 THIS DOCUMENT CONTAINS - -3) . PAGES . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-! MIL-P-70437 13 W 7779706 0354287 5 W MIL-P-70439 (AR) STANDARDS MIL I TARY MIL-STD-105 - Sampling Procedures and Tables For Inspections By Attribu
7、tes MIL-STD-1169 - Packaging, Packing and Marking For Shipment of Inert Ammunitions Components 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this specification to the extent specified herein. - - DRAW
8、INGS U.S. ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER (ARDC) 9327312 - Packing and Marking for Box, Fiberboard, 9335980 - Spike and Cap Assembly 10521642 - Spike For Spike and Cap Assembly M456A1 or M456A2, or Spike Assembly M456A2 (Copies of specifications, standards, handbooks, drawings, and pub
9、lications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the Contracting Officer.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless
10、otherwise-indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. ANSI-B46.1 - Surface Texture. (Application for copies should be addressed to the American National Standards Institute (ANSI), 1430 Broadway, New York, NY 10018 .) ASTM Methods - American Soc
11、iety for Testing and Materials E8 - Tension Testing of Metallic Materials E10 - Brinell Hardness of Metallic Materials, B117 - Salt Spray (Fog) Testing Test for 2 ? P Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-process controls, determined-by to
12、be used in the production of paragraph 4.3.4) MIL-P-70437 I3 U 777770b 0354270 I U MIL-P-70439 (AR) (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Phila., PA 19103.) 2.3 Order of precedence. In the event of a conflict between the text
13、 of this specification and the references cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS 3.1 General. Materials, parts and assemblies shall comply with the requirements specified on the applicable drawings, referenced specifications and the following: P 3.2 Heat
14、treatment or stress relief. The heat treatment or stress relief applied shall be uniform throughout each lot of components and shall be so conducted as to produce in each component the mechanical properties specified on the applicable component drawing . 3.2.1 Cold shaping (if applicable). Cold shap
15、ing shall be so accomplished as to produce the required mechanical properties in Che metal parts. relieved at the time and temperature specified on the applicable drawing to achieve stress relief and still meet the required mechanical proper ties. After cold work,- the metal parts chail be stress 3.
16、3 Protective coating. Protective coating shall be in accordance with the applicable drawings and specifications. When protective coating is required by component details, finish requirements will apply to all indicated surf aces of the component regardless of contour configuration. Salt spray testin
17、g shall be in accordance with the applicable drawings. the applicable drawings. All paint and marking shall be dry to the touch before testing and packing for shipment. 3.4 Painting. Painting shall comply with the requirements on 3.5 Process description and controls. The contractor in accordance wit
18、h the contract provisions shall make available a written description of the specified production process and the Government as crucial that are the first article sample (see 3.6 Structural integrity. deformation of the spike during There shall be no breakup or any proving ground test conducted. 3 Pr
19、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70437 33 W 7777706 0354273 3 U MIL-P-70439 (AR) 3.7 First article inspection. This specification contains technical provisions for first article inspection. Requirements for the submission of the fi
20、rst article samples by the contractor shall be as specified in the contract. 3.8 Workmanship. The requirements for workmanship are as specified on the applicable drawings, referenced specifications and the following: 3.8.1 Metal defects 3.8.1.1 Components. All components, and component cavities shal
21、l be free from cracks, splits, cold shuts, inclusions, pipes, porosity, bursts, folds, seams, and other metal defects. 3.8.1.2 Component cavities. In addition to 3.8.1,l all component cavities shall be free of scale, fins, burrs, draw marks, laminations, imbedded foreign matter, pits, craters, and s
22、harp edges. 3.8.2 Burr. No compnent shall have a burr. 3.8.3 Foreign matter. All parts and assemblies shall be free of dirt, chips, oil, grease? rust, corrosion or other foreign matter. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsiblity for inspection and standard quality assurance provisions. Unless
23、 otherwise specified herein or in the contract, the provisions of MIL-A-48078 shall apply and are hereby made a part of this detail specification. 4.2 Classification of inspections. The following types of inspections shall be conducted on this item: a. First Article Inspection b. Quality Conformance
24、 Inspection 4.3 First article inspectton 4.3.1 Submission. The contractor shall submit a first article sample designated by the Contracting Officer for evaluation in accordance with provisions of 4.3.2. The first article sample shall consist of the following sample quantities as indicated. 4 Provide
25、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-70437 13 m 777770b 0354272 5 m MIL-P-70439 (AR) Part Description Drawinqs Quantity Spike (Complete including paint) 1052 16 4 2 35 Spike (complete excluding paint) 10521642 5 4.3.2 Inspection to be perf
26、ormed. See MIL-A-48078 and Table 4 . 3 . 3 I specified herein. Rejection . -See MIL-A-48 078 . 4.3.4 Process description and controls. At the same time as submission of the first article samples, the contractor shall make available a written description of the production process and controls being u
27、sed in the manufacture of the item. Written descriptions shall be submitted on the following component, Spike, dwg. 10521642. Included shall be the intermediate steps in the press operation used in forming the spike, as well as intermediate process temperatures and their specific limits. 5 Provided
28、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70439 13 m 779790b 0354273 7 = c O -4 ci u ai rn c H ai rl u -4 ci LI 4 ci rn u .d Fri . H 3 3 O ci u rn ci u a, w ai nu *o cw -4 n me pio * H rl H w H H O z * . N a Provided by IHSNot for ResaleNo reprodu
29、ction or networking permitted without license from IHS-,-,-_- - MIL-P-70V39 13 7979706 035V27V 7 . _. MIL-P-70439 (AR) 4.4 Quality conformance inspection 4.4.1 Inspection lot formation. Inspection lots shall comply 4.4.1.1 Heat treatment lots. Heat treatment lots shall contain with the lot formation
30、 of MIL-A-48078. spikes from not more than one heat of steel, that has been heat treated in the same heat-treating equipment, at the same temperature, in one unchanged process. One or more batches may be comprised of a heat treatment lot but lot size shall not exceed 2000 components. The heat treatm
31、ent lot thus constituted shall be the basis for the selection of samples or the tension test hereinafter prescribed. 4.4.1.2 Stress relieved lots. Stress relieved lots shall contain spikes from not more than one heat of steel cold shaped by the same process, utilizing the same cold shaping equipment
32、 (as applicable) and stress relieved in one unchanged process. One or more batches may be comprised of a stress relieved lot but lot size shall not exceed 2000 components. The stress relieved lot thus constituted shall be the basis for the selection of samples for the tension test hereinafter prescr
33、ibed. 4.4.1.3 Miscellaneous lots. Small lots (such as spikes manufactured from abnormally small heats of steel or spikes that have become separated from previously delivered lots, etc) may at the discretion of the supplier be grouped into miscellaneous heat treatment or stress relieved lots as the c
34、ase may be. Such lots shall be identified by a miscellaneous lot code number and processed in accordance with 4.4.1.1 or 4.4.1.2 as applicable. The miscellaneous lot thus constituted shall be the basis for the selection of samples for the tension test hereinafter prescribed. O 4.4.1.4 Spike lots. Wh
35、en it has been determined that spikes of a heat treated, stress relieved or miscellaneous lot have complied with the mechanical properties requirement of the applicable drawings, they may be regrouped into spike lots, to which will be assigned a spike lot number. The spike lots shall consist of spik
36、es produced by one supplier under one contract in one unchanged process, in accordance with the same drawing, same drawing revision, same specification, and same specification revision. 4.4.2 Examination. See MIL-A-48078. a. Unless otherwise specified in the classification of defects and tests, samp
37、ling plans for major and minor defects shall be in accordance with MIL-STD-105 Level II. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70437 13 I 7797706 0354275 O I MIL-P-70439 (AR) b. The roughness comparison specimens prescribed by ANSI-
38、B 46.1 shall be used as a basic for surface roughness determination. c. Tool control dimensions. Dimensions marked tool control shall be gaged during first article testing and after each 250 items produced on each machine in operation and prior to any tooling change. Where destruction of components
39、is necessary to inspect these dimensions, measurements of the tool may be substituted provided the contractor has established correlation between the tool dimensions and the component dimensions prior to the start of production. adequate surveillance to assure that drawing requirements are being met
40、 throughout the life of the tool. immediately be instituted by the contractor. All material produced prior to periodic inspection will be rejected and screened whenever a defective tool control dimension is found. The contractor shall be responsible for maintaining Corrective action will 8 Provided
41、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-r Y W P 8 Z O F o O0 o o O000 O O00 o w ww -3 w wwww w www w o O0 o o O000 O O00 o a a. *.#. * w ow O a, Lia, zu ci ma, u wu c m !Y Uw Lios 4Ja,Liu) rcc.0U-c n GL a, X -ri pi QirD u mw wo Li Ia, u)& 1 u aJu 5 O
42、U .11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-P-70437 13 W 77777Ob 0354277 8 m a, x 4 pi m c O ci O rl cici rn 73 uua, LiLiLi a, a,-rl 55 3 cc 7 7w O ww aaLi a,a,a, ci Li Lici occ c rlcicia, rn u Lia, aiarna Lia,oo .rlLicLl 3 w a, . 12
43、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70437 13 797770b 0354300 O w u O h z 8 e c c r c C c C c r F c 5 r t! VI I VI 8 t m a I nn rlrl WID h di al c, 2 U m (v . . drl03rlrl03rlrl rl mmmmmmmm m . m dP dpdPdpdpdPdpdp VIVI.VIVIVImVIa, m I
44、DIDIDIDDIDIDWci ID .O . 0000000 o LI0 c 8 .rl .rl utn c,a,Q)Ki _ _I. . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-pi Id u a c: Id a, Jc .rl pi cn CJ CJ * * . b e dd mm .e ow& mm ww O0 b. 5 aJ C d H al 5 aJ C O z d ar C O z uu 2% dCJ O0 rtrt 14 P
45、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i MIL-P-70437 13 W 779790b 0354302 4 W 4.4.3 Inspection testing. The following tests shall be performed in accordance with the provisions of 4.5. O 4.4.3.1 Mechanical properties 4.4.3 .l. 1 Hardness 4,
46、4.3.1.1.1 Heat treatment lots. In order to determine uniformity of heat treatment, each spike in the heat treatment lot (as defined in 4.4.1.1) shall be subjected to a hardness test with a Brinell hardness tester, using a 5 second minimum dwell or by any other method of hardness testing approved by
47、the technical activity. In any event, details regarding the detailed test and calibrating procedures shall be submitted to the technical agency for approval. 4.4.3.1.1.2 Stress relieved lots. Twenty-five cold shaped spikes (as applicable) from each stress relieved lot (as defined in 4.4.1.2) represe
48、nting the first product through the stress relief furnace and five spikes from each one hour production thereafter for the balance of the stress relieved lot shall be subjected to a hardness test to assess uniformity of the product. In any event, details regarding the detailed test and calibrating p
49、rocedures shall be submitted to the technical agency for approval. 4.4.3.1.1.3 Miscellaneous lots. Miscellaneous heat treatment lots of spikes shall be hardness tested in accordance with 4,4.3.l.1.lt miscellaneous cold shaping lots of spikes shall be hardness tested in accordance with 4.4.3.1.1.2. 4.4.3.1.2 Tension
