1、MIL-P-70524 13 m 9979706 04b5107 b m MIL-P-70524 (AR) 29 OCTOBER 1990 MILITARY SPECIFICATION PROJECTILE, 105MM, HE, RA, XM913/XM927 WARHEAD INSULATION ASSEMBLY FOR This specification is approved for use by the U.S. Army Armament, Munitions and Chemical Command, and is available for use by all Depart
2、ments and Agencies of the Department of Defense. 1.- SCOPE 1.1 Scope. This specification contains requirements and quality assurance provisions for the fabrication and packaging of the warhead body, insulator and warhead insulation assembly for 105MM, HE, RA, Projectile XM913 and XM927 (see 6.1). 2,
3、 APPLICABLE DOCUMENTS 2.1 Government documents, 2.1.1 SDecifications, 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 o
4、f the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS FEDERAL TT-C-4 9 O - Cleanhg Methods and Pre-treatment of Ferrous Surfaces for Original Coatings MILITARY MIL-A-48078 - Ammunition, Standard Quality
5、Assurance MIL-S-50783 - Steel Alloy, Special Purpose for Provisions, General Specification for Ammunition Components (HF-1) Beneficial comments (-tim, additiolis, deletions) and any pertinent data which may be of use in imprwing this document shdd be addressed to: Commander, U.S. Anny ARDEC, Al?: SM
6、CAR-BAGS, Picathy Arsenal, New Jersey W8M-Soo0 by using the df-addressed Standardization Document mpmv-t Proposai (DD Fom 1426) appearing at the end of this document or by letter. Ah4SC NIA FsC 1315 NT 4, Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reprodu
7、ction or networking permitted without license from IHS-,-,-MIL-P-70524 (AR) STANDARDS FEDERAL FED-STD-141 MILITARY MIL-STD-410 MIL-STD-1168 MIL-STD-1169 MIL-STD-1459 - paint, Varnish, Lacquer and Related Materials; Method of Inspection and Testing - Nondestructive Testing Personnel Qualification and
8、 Certification - Lot Numbering of Ammunition - packaging, Packing and Marking for Shipment of inert Ammunition Components - Macrograph Standards for Steel Bars, Billets and Blooms for Ammunition Components (Unless otherwise indicated, copies of federal and military specifications, standards and hand
9、books are available from: Military Specifications and Standards, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) The following other Government documents, drawings and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are tho
10、se cited in the solicitation. 2.1.2 Other Government documents, drawinqs and publications. DRAWINGS U.S. ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER ( ARDEC ) PRODUCT AND PACKAGING DRAWINGS 9381144 - Warhead Insulation Assembly INSPECTION EQUIPMENT DRAWINGS c 9280384 - Envelope Drawin
11、g Ultrasonic Inspection Equipment for 105MM HERA XM913 Warhead Body 9280389 - Ultrasonic Inspection Standard 105MM HERA XM913 Warhead Body (Copies of specifications, standards, drawings and other Government documents required by contractors in connection with specific acquisition functions should be
12、 obtained from the Contracting activity or as directed by Contracting Officer.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70524 (AR) 2.2 Non-Government publications. The following document(s) form a part of this document to the extent s
13、pecified herein, otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6
14、.2). Unless AMERICAN SOCIETY FOR TESTING AND MATERIALS E8 - Tension Testing of Metallic Materials E10 - Brinell Hardness of Metallic Materials E103 - Rapid Indentation Hardness Testing of Metallic Materials (Copies may be purchased directly from the American Society for Testing and Materials, 1916 R
15、ace Street, Philadelphia, Pa 19103.) 2.3 Order of precedence. In the event of a conflict between the text of this document and the references cited heren, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemp
16、tion has been obtained. 3. REQUIREMENTS 3.1 Material. Materials shall be in accordance with applicable drawings and specifications. 3.2 Warhead insulation assembly. The warhead insulation assembly and components shall comply with all requirements specified on Drawing (dwg.) 9381144 and with all the
17、requirements specified in a applicable specifications. 3.3 Heat treatment or stress relief. Heat treatment or stress relief applied shall be uniform throughout each lot of warheads and shall be so performed and controlled as to produce in the warhead the mechanical properties specified on the applic
18、able drawing, No warhead shall be reheat treated if it fails to meet the applicable drawing requirements without Government approval. hydrostatic pressure in accordance with requirements specified on drawing 9381141 without evidence of leakage, cracks, ruptures or permanent distortion when tested as
19、 specified in 4.5.1. of metal parts in the gun bore or in flight, when tested as specified in 4.5.8. 3.4 Hydrostatic test. The warhead shall withstand an internal 3.5 Provina around. There shall be no break-up or separation 3.6 Warhead material defects. 3 Provided by IHSNot for ResaleNo reproduction
20、 or networking permitted without license from IHS-,-,-MIL-P-70524 13 W 7777906 04b5112 b W MIL-P-70524 (AR) 3.6 Warhead material defects. 3.6.1 Warhead bodv. The warhead body, including the cavity shall be free from cracks, splits, bursts, cold shuts, pipes, porosity, inclusions, folds, seams and ot
21、her metal defects. 3.6.2 Warhead cavitv. In addition to the requirements of 3.6.1 the warhead cavity shall be free from scale, fins, burrs, draw marks, laminations, imbedded foreign matter, pits and all surface discontinuities which have a radius smaller than .O30 inches. 3.6.3 Visual standards. Vis
22、ual standards for evaluation of metal defects will be established for each contract after the first months production. However, establishment of visual standards will not waive the requirements for compliance with 3.6.1 and 3.6.2 (see 3.7 Insulation. The insulation shall be free from cracks, 6.5): s
23、eams, porosity,. cavities and other defects. 3.7.1 Bondinq assembly pull test. The warhead insulation shall be capable of withstanding a pulltest of 100 pounds minimum. 3.8 Ultrasonic inmection. Warheads shall be free of any discontinuities equal or in excess of the inspection criteria within their
24、respective zones when tested in accordance with 4.5.6. The inspection criteria are notches and holes in standards (see 9280384 and 9280389) which simulate larger actual cracks and piping flaws. shall be free from bare spots, blisters, grease, dirt and other foreign matter. the cavity. 3.9 Interior c
25、avity finish. The interior cavity after painting There shall be no pool of paint in the bottom of 3.10 Surface finish. The requirements for surface finish are as detailed on the applicable drawing. specimens shall be used as a basis for surface roughness determination. . The roughness comparison 3.1
26、1 Slow bend wecracked charpv test. The nominal crack strength shall be 25 KSI*. test as a minimum. 3.12 First article inmection. This specification makes provisions for first article inspection. Requirements for the submission of first article sample by the contractor shall be specified in the contr
27、act. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-70524 (AR) 3.13 Steel auality. Steel supplied shall comply with MIL-S- 50783, except that macroetch quality shall be per MIL-STD-1459. The quality of the steel as indicated by the macroetch
28、 results shall be equal to, or better than A5, B3 and C8 with defects D1, D3, D4, D5, D6, D7 or D8 unacceptable. Manufacturer shall provide a certification that the applicable MIL-S-50783, and macroetch requirements have been met. 3.14 Workmanship. The requirements for workmanship are as shown on th
29、e applicable drawing, in the applicable specifications and the following: shall be as specified on the applicable drawings and in the applicable specifications referenced thereon. Where cleaning and preparation are required by component details, the finish specified shall apply to indicated surfaces
30、 regardless of contour configuration. 3.14.1 Surface preparation. Preparation of metal surfaces 3.14.2 Painting. Painting shall comply with the requirements of the applicable drawing. before packing for shipment. in accordance with the applicable specification. All paint shall be dry to the touch Dr
31、ying time prior to testing shall be 3.14.3 Threads. Threads shall be full and undamaged for the entire minimum length or depth as specified on the applicable drawing. with the assembly or function of the round or which might be injurious to personnel handling the item. 3.14.4 Burr. No part shall hav
32、e a burr which might interfere 3.14.5 Foreign matter. No part or assembly shall contain dirt, grease, chips, rust, corrosion or other foreign matter. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is res
33、ponsible for the performance of all inspection requirements (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 here
34、in, unless disapproved by the Government. The Government reserves 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. 5 Provided by IHSNot for ResaleNo reproduction
35、 or networking permitted without license from IHS-,-,-r MIL-P-705-24 (AR) 4.1.1 Responsibilitv for compliance. All items shall meet all requirements of Section 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program.
36、 requirements 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 prac
37、tice to ascertain conformance to requirements, however, this does not authorize . The absence of any inspection submission of known defective material, either indicated or actual, nor does it commit the Government to accept defective material. 4.2 Classification of inspections. The following types o
38、f inspection shall be conducted on this item: a. First article inspection b. Quality conformance inspection 4.3 First article inspection. 4.3.1 InsDection and tests (non ballistic!. 4.3. article evaluat i article quant it i 1.1 Submission. The contractor shall sample as designated by the contractin
39、.on Ln accordance with provisions of 4. samDle shall consist of the followina 4 .es as indicated: . submit a first .g officer for 3.2, The first items in sample Part Description Drawinq Quantity Warhead Insulation Assy 9381144 25 Warhead (Unpainted Metal Parts) 9381141 25 Warhead (Prior to Knurling
40、and Threading Base) 9381141 25 insulation 9381142 10 Consecutively produced from each cavity off each mold All assemblies and components shall have been produced by the contractor or furnished by a supplier and shall have been manufactured using the same production processes, procedures and equipmen
41、t which will be used in fulfilling the contract. All parts and materials, including packaging and packing, shall be obtained from the same source of supply as will be used in regular production. Prior to submission, the contractor shall inspect the sample to the degree necessary to assure that it co
42、nforms to the requirements of the contract and submit a record of this inspection with the sample including statements of findings for materials, processes and tests. A sample containing known defects will not be 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
43、from IHS-,-,-MIL-P-70524 (AR) submitted unless specifically authorized, by the contracting officer. A first article sample, or portion thereof, as directed by the contracting officer, shall also be submitted whenever there is a lapse in production for a period in excess of 90 days or whenever a chan
44、ge occurs in manufacturing process, material used, drawing or specification such as to significantly affect product uniformity as determined by the Government. specified herein. 4.3.2 InsPections to be Performed. See MIL-A-48078 and Table I 4.3.2.1 Ballistic tests. 4.3.2.1.1 Submission. Twenty compl
45、ete assemblies packed in the form that will be used for shipping of the regular production quantity shall be submitted to a Government installation designated by the Contracting Officer for loading and ballistic testing. Unless otherwise directed by the Contracting Officer, the assemblies shall not
46、be submitted prior to the acceptance of the sample submitted to the Government for examination (see 4.3.1) and shall consist of twenty assemblies. ground tests will be performed on ten (10) assemblies in accordance with 4.4.3.1.1, utilizing the procedures of 4.5.8 to determine compliance with 3.5. 4
47、.3.1.2 Tests to be Performed and accegtance criteria. Proving 4.3.3 Rejection. See MIL-A-48078. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-rl LL O rl ti I v) t- a di di di a di d di rl rlm mdi did * mdim * ahlmdm diInInInIn dididdid . . In hl
48、*In did m rl a mumarl m mmmmm . rl at- mm OV OV oV oQ OQ OW O 00000 O 00000 I4 drlrlrlrl .4 *. .4 e4 .* .* In InLnaarl a aN dp dp OQ O00 O00 rlrlrl InInIn amel .4 .4 .4 vi w z E 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-7052LI 33 W 7777
49、70b 0465337 5 W MIL-P-70524 (AR) 4.4 Duality conformance inspection. . 4.4.1 Inspection lot formation. Inspection lots shall comply with the formation provisions of MIL-A-48078 and the following: 4.4.1.1 Heat treatment inspection lot. Heat treatment inspection lots shall not exceed one millheat of steel or 500 components, whichever is smallest. whenever a break in heat treating of eight (8) hours or more occurs or a
