1、 MIL-DTL-60426B (AR) W/AMENDMENT 120 September 2006 SUPERSEDING MIL-DTL-60426B (AR) 21 June 2006 DETAILED SPECIFICATION BURSTER, PROJECTILE - M54A1 This specification is approved for use by the U.S. Army Armament Research, Development and Engineering Center (ARDEC), and is available for use by all D
2、epartments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers components, loading, assembling and packing of the M54A1 projectile burster. 2. APPLICABLE DOCUMENTS. 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specif
3、ication. This section does not include documents in other sections of this specification or recommended for additional information or as examples. While every effort has been made to assure the completeness of this list, document users are cautioned that they must meet all requirements documents cit
4、ed in sections 3 and 4 of this specification, whether or not they are listed. AMSC N/A FSC:1320 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Comments, suggestions, or questions on this document should be addressed to the Commander, U.S. Army ARDEC, ATTN: AMSRD-AA
5、R-QES-E, Picatinny, NJ 07806-5000 or emailed to ardec-stdznpica.army.mil. Since contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil. INCH-POUND Provided by IHSNot for ResaleNo reproduction or ne
6、tworking permitted without license from IHS-,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 2 2.2 Government documents. 2.2.1 Specification, standards and handbooks. The following specifications, standards, and handbooks form a part of this specification to the extent specified herein. Unless otherwise specif
7、ied, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE STANDARDS MIL-STD-1168 - Ammunition Lot Numbering and Ammunition Data Card MIL-STD-1916 - DOD Preferred Method of Acceptance of Product (Copies of these documents are available online at http:/a
8、ssist.daps.dla.mil/quicksearch/ or http:/assist.daps.dla.mil or from the Standardization Documents Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2.2 Other Government documents, drawings and publications. The following other Government documents, drawings and publicatio
9、ns below form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. U.S. ARMY ARMAMENT RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER (ARDEC) DRAWINGS 9238839 - PROJECTILE BURSTER M54A1 ASSEMBLY 9238840 - DISC 9238841 - CLO
10、SURE 9238842 - BURSTER TUBE 9238843 - BASE PLUG 9241806 - COMPOSITION B-5 (Copies of these drawings may be requested online at Drawing-Requestpica.army.mil or from US Army ARDEC, ATTN: AMSRD-AAR-AIS-T, Picatinny, NJ 07806-5000.) 2.3 Non-Government publications. The following documents form a part of
11、 this document to the extent specified herein. Unless otherwise specified, the issues of the documents are those cited in the solicitation or contract. ASTM INTERNATIONAL ASTM E 1742 - Standard Practice for Radiographic Examination (Copies of ASTM standards are available online from http:/www.astm.o
12、rg/ and from American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 3 2.4 Order of precedence. In the event of a conflict
13、 between the text of this specification and the references cited herein, the text of this specification takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (se
14、e 6.2), a sample shall be subject to first article inspection in accordance with 4.2. 3.2 Materials, components and assemblies 3.2.1 Disc. Materials components and assemblies shall comply with all requirements specified on drawing 9238840. 3.2.2 Closure. Materials components and assemblies shall com
15、ply with all requirements specified on drawing 9238841. 3.2.3 Burster tube. Materials components and assemblies shall comply with all requirements specified on drawing 9238842. 3.2.4 Base plug. Materials components and assemblies shall comply with all requirements specified on drawing 9238843. 3.2.5
16、 Projectile burster M54A1 assembly. Materials components and assemblies shall comply with all requirements specified on drawing 9238839 and this specification. 3.3 Ammunition lot numbering. Ammunition lot numbering shall be assigned in accordance with MIL-STD-1168. 3.4 Burster tube loading. The inte
17、rior surface of the burster tube shall be dry when the high explosive is poured into the burster tube. Solid explosives shall not be present in the burster tube before loading or be added to the burster tube during pouring or cooling. No explosive scrap, clean or otherwise, shall be remelted or reus
18、ed. Riser scrap, scrap from floor sweepings, ventilation and suction apparatus, or scrap from drilling operations shall not be reused or remelted. 3.5 Explosive composition. The explosive composition shall be prepared in accordance with drawing 9241806. Composition B-5 shall conform to the requireme
19、nts specified in Table I, when tested in accordance with paragraph 4.4.2. Composition B-5 is prepared by the addition of TNT to molten Cyclotol, Type I (75/25). The elastomer and an excess of the Glyceride of 12-hydroxystearic acid are added separately and the mixture is stirred until uniform. Provi
20、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 4 TABLE I. Composition B-5 properties and requirements Property Requirement RDX% 67.0 +/- 10.0% TNT% 30.5 +/- 9.5% Resin% 0.7 to 4.0 3.6 Explosive loading radiographic requi
21、rements. 3.6.1 Cavitation (base). There shall be no single cavity having a projected length of more than 1/8 inch or sum total of cavities of more than 1/64 square inch in the area from the top of the base plug to one inch above the top of the plug. There shall be no cracks or annular rings in the c
22、harge in this area except that cracks less than 1/32 inch wide shall be disregarded. 3.6.2 Cavitation (top) There shall be no single cavity having a projected length of more than 3/8 inch or a sum total of cavities of more than 3/8 square inch and there shall be no more than three transverse cracks
23、over 1/32 inch wide in the area from the top of charge to one inch from the top of the base plug. Cracks less than 1/32 inches wide in this area shall be disregarded. 3.6.3 Porosity. From the top of the base plug to one inch above the top of the plug, porous areas shall not exceed a projected length
24、 of 0.47 inches or a projected area of 0.16 square inch. From one inch above the top of the base plug to the top of the charge, porous areas shall not exceed a projected length of 9.5 inches or a projected total area of 4.75 square inches. 3.6.4 Void between charge and base plug. There shall be no v
25、oid greater than 1/32 of an inch between the charge face and the face of the base plug. 3.7 Workmanship. All parts shall be fabricated and finished in a thorough, workmanlike manner. They shall be clean and free of burrs, sharp edges, unblended radii, cracks, surface defects, chips, dirt, grease, ru
26、st and other foreign matter. The cleaning method used shall not be injurious to any parts nor shall the parts be contaminated by the cleaning agent. All required markings shall be neat and sharply defined. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-
27、,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 5 4. VERIFICATION TABLE II Requirement / verification cross-reference matrix Requirement / verification cross-reference matrix CLASSES OF VERIFICATION METHOD OF VERIFICATION N/A NOT APPLICABLE A - FIRST ARTICLE 1 - ANALYSIS 2 DEMONSTRATION B - ACCEPTANCE 3 - EXA
28、MINATION 4 - TEST SECTION 3 REQUIREMENTS VERIFICATION METHOD VERIFICATION CLASS Ph. Description N/A 1 2 3 4 A B SECTION 4 VERIFICATION 3.1 First article X X X 4.2 3.2 Materials, components ands assemblies X 3.2.1 Disc X X X 4.3.2.1 3.2.2 Closure X X X 4.3.2.2 3.2.3 Burster tube X X X 4.3.2.4 3.2.4 B
29、ase plug X X X 4.3.2.3 3.2.5 Projectile burster M54A1 X X X X 4.3.2.6 3.3 Ammunition lot number X X X 4.3.2.6 3.4 Burster tube loading X X X 4.3.2.5 3.5 Explosive composition X X X 4.3.2.6/4.4.2 3.6 Explosive loading radiography X X X 4.3.2.6/4.4.1 3.6.1 Cavitation base X X X 4.3.2.6 3.6.2 Cavitatio
30、n top X X X 4.3.2.6 3.6.3 Porosity X X X 4.3.2.6 3.6.4 Void between charge and base plug X X X 4.3.2.6 3.8 Workmanship X X X 4.3.2.1-4.3.2.6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 6 4.1 Classification of ver
31、ification. a. First article inspection (see 4.2). b. Conformance inspection (see 4.3). 4.2 First article inspection. 4.2.1 First article verification. When specified, a sample of the cartridge and its components shall be subjected to First Article Verification in accordance with Table IV. 4.2.2 Firs
32、t article quantity. First article verification shall be performed on the quantity of item indicated in Table III. TABLE III - First article verification quantities Part Description Drawing Quantity PROJECTILE BURSTER M54A1, ASSEMBLY 9238839 25 PROJECTILE BURSTER PRIOR TO ASSEMBLY FOR COMPOSITIONAL A
33、NNALYSIS 9238839 10 DISC 9238840 25 CLOSURE 9238841 BURSTER TUBE 9238842 25 BASE PLUG 9238843 25 4.2.2.1 Comp B5 explosive composition. The assemblies tested for explosive composition shall be a representative sample, per MIL-STD-1916 (Representative (stratified) sampling), from the explosive loadin
34、g process (kettle mix, pour, and cooling), conducted at full production volume and rate. The sample shall be selected to represent the pours from the kettle mix and shall include at least one assembly each from the first and last pour from that kettle. Sample assemblies shall be completely cured pri
35、or to explosive composition testing. 4.2.3 Rejection. If any item fails to comply with requirements, the first article sample shall be rejected. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-60426B W/AMENDMENT 1 7 TABLE IV - First article i
36、nspection NUMBER OF FAT SAMPLES REQUIREMENT PARAGRAPH INSPECTION METHOD REFERENCE DISC Dwg. 9238840 Examination for Defects 25 3.2 4.3.2.1 CLOSUREDwg. 9238841 Examination for Defects 25 3.2 4.3.2.2 BASE PLUG Dwg. 9238843 Examination for Defects 25 3.2 4.3.2.3 BURSTER TUBE Dwg. 9238842 Examination fo
37、r Defects (prior to coating) 25 3.2 4.3.2.4 Examination for Defects 25 3.2 4.3.2.5 PROJECTILE BURSTER M54A1, ASSEMBLY Dwg. 9238839 Examination for Defects 25 3.2 4.3.2.6 * Comp B5 Explosive Composition 10 3.5/3.6 4.3.2.6/4.4.2 Provided by IHSNot for ResaleNo reproduction or networking permitted with
38、out license from IHS-,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 8 4.3 Conformance inspection. 4.3.1 Lot formation. Lot formation shall be in accordance with lot formation requirement of MIL-STD-1916 paragraph “Formation and identification of lots or batches”. In addition, each lot of projectile burster c
39、ases shall contain: a. Cyclotol of one type from one manufacturer. b. TNT of one grade from one manufacturer. c. Polyurethane elastomer prepolymer from one manufacturer. d. Glyceride of 12 hydroxystearic acid from one manufacturer. e. Tubes and components of one lot interfix number from one manufact
40、urer. 4.3.2 Classification of characteristics. Conformance examinations and tests are specified in the following Classification of Characteristics paragraphs. When cited herein, attributes sampling inspection shall be conducted in accordance with MIL-STD-1916, using the inspection levels cited in th
41、e Classification of Characteristic paragraphs. Definitions of Critical, Major and Minor shall be as defined in MIL-STD-1916. Acceptance criteria shall be in accordance with MIL-STD-1916. Unless automatic AIE is used for final inspection, Critical characteristics shall be inspected 100% followed by a
42、 sampling inspection in accordance with Verification Level VII of MIL-STD-1916. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 9 Conformance inspection by classification of characteristics DRAWING NUMBER 9238840 PAR
43、AGRAPH 4.3.2.1 TITLE Disc SHEET 1 OF 1 NEXT HIGHER ASSEMBLY 9238839 CLASSIFICATION EXAMINATION OR TEST CONFORMANCE CRITERIA REQUIREMENT PARAGRAPH INSPECTION METHOD REFERENCE Critical None defined Major 101 Diameter Level IV 3.2 AIE 102 Thickness Level IV 3.2 AIE Minor 201 Evidence of poor workmanshi
44、p Level II 3.7 Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 10 Conformance inspection by classification of characteristics DRAWING NUMBER 9238841 PARAGRAPH 4.3.2.2 TITLE Closure SHEET 1 OF 1 NEXT HIGHER ASS
45、EMBLY 9238839 CLASSIFICATION EXAMINATION OR TEST CONFORMANCE CRITERIA REQUIREMENT PARAGRAPH INSPECTION METHOD REFERENCE Critical None defined Major 101 Outside diameter Level IV 3.2 AIE 102 Inside diameter Level IV 3.2 AIE 103 Thickness Level IV 3.2 AIE Minor 201 Evidence of poor workmanship Level I
46、I 3.7 Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 11 Conformance inspection by classification of characteristics DRAWING NUMBER 9238843 PARAGRAPH 4.3.2.3 TITLE Base plug SHEET 1 OF 1 NEXT HIGHER ASSEMBLY 9
47、238839 CLASSIFICATION EXAMINATION OR TEST CONFORMANCE CRITERIA REQUIREMENT PARAGRAPH INSPECTION METHOD REFERENCE Critical None defined Major 101 Large diameter, min. Level IV 3.2 AIE 102 Small diameter, min. Level IV 3.2 AIE 103 Total length Level IV 3.2 AIE 104 Distance to shoulder of large diamete
48、r Level IV 3.2 AIE Minor 201 Chamfer missing Level II 3.2 Visual 202 Evidence of poor workmanship Level II 3.7 Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-60426B (AR) W/AMENDMENT 1 12 Conformance inspection by classification of characteristics DRAWING NUMBER 9238842 PARAGRAPH 4.3.2.4 TITLE Burster tube (prior to coati
