1、MIL-I-46497B 9999906 1973497 17 m I INCH-POUND I MIL-I-46497B 11 Januarv 1994 SUPERSEDING 30 June 1966 MIL-I-46497A(MU) MILITARY SPECIFICATION INITIATOR, CARTRIDGE ACTUATED, DELAY M4A1, M12A1, M45A1, and M49A1 METAL PARTS ASSEMBLY mis specification is approved for use by all Departments and Agencies
2、 of the Depament of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for the M4A1, M12A1, M45A1, and M49A1 Delay Cartridge Actuated Initiator Metal Parts Assembly (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following spe
3、cifications and standards 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 the Department of Defense Index of Specifications and Standards (DODISS) and supplements thereto, cited in the solicitatio
4、n (see 6.2). SPECIFICATIONS MILITARY MIL-A-2550 Ammunition, General Specification For Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Mian Head Division, Naval Surface Warfare Center,
5、 Standardization Branch (Code 8420), 101 Strauss Avenue, Imlian Head, MD 20640-5035, by using the Standardization Document Improvement Proposal D Form 1426) appearing at the end of this document or by sending a letter. AMSC NIA FSC 1377 DISTRIBUTION STATEMENT A: Approved or public release; distribut
6、ion is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1L-I-46497B = 9999906 1973478 753 MIL-I-46497B STANDARDS FEDERAL FED-STD-151 Metals, Test Methods MILITARY MIL-STD- MIL-STD- 05 Sampling Procedures And Tables For Inspection By Attribu
7、tes 09 Quality Assurance Terms And Definitions MIL-STD-4 13 Visual Inspection Guide for Elastomeric O-rings MIL-STD-1167 Ammunition Data Card (Unless otherwise indicated, copies of federal and military specifications and standards are available from Standardization Documents Order Desk, Bldg. 4D, 70
8、0 Robbins Avenue, Philadelphia, FA 191 11-5094.) 2.1.2 Other Government drawings. The following Government drawings form a part of this specification to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation (see 6.2). DRAWINGS Naval Surface Warfare C
9、enter, Indian Head (CAGE Codes 19200 and 19203) 85958 17 Initiator, Cartridge Actuated, Delay, Metal Parts Assembly 8796826 Box, Fiberboard (Inner) Packing, Ammunition, for Initiator, Cartridge Actuated, Delay, M4A1, M6A1, M12A1, M26, M33, MU, M45A1, or M49A1 8796827 Box, Packing, Ammunition, for In
10、itiator, Cartridge Actuated, Delay, M4A1, M6A1, M12A1, M26, M33, MU, M45A1, or M49A1 92 16824 Box, Fiberboard (Outer) Alternative, Packing, Ammunition, for Initiator, Cartridge Actuated, Delay, M4A1, M6A1, M12A1, M26, M33, M44, M45A1, or M49A1 (Application for copies should be addressed to: Commande
11、r, Indian Head Division, Naval Surface Warfare Center, Attn: Data Control Branch (Code 8410), Indian Head, MD 20640-5035.) 2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in thi
12、s document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-4b497B 0b Li34 bT m MIL-I-46497B 3. REQUIREMENTS 3.1 First article. When specified
13、(see 6.2), a sample shall be subjected to first article inspection (see 6.4) in accordance with 4.4. 3.2 Materials. All materials used in the manufacture of the initiators shall conform to the specifications referred to on the respective drawings unless specific approval in writing covering a depart
14、ure therefrom has been obtained from the cognizant Navy design activity prior to manufacture. When alternate materials or methods of manufacture are specified on the drawings, the bidders selections shall be clearly stated in the proposal. 3.2.1 Raw material. The contractor shall be responsible for
15、selecting from the classification list contained in the raw material specification the surface and physical condition of the raw material intended for use in manufacture. 3.3 Hardness and other physical properties. Hardness and other physical properties required by the drawing shall be uniform throu
16、ghout the part within specified tolerances. Requirements for all alloy and steel parts shall be achieved by quenching and tempering. 3.4 Hydrostatic pressure. The initiator chamber and cap shall withstand a hydrostatic pressure of 5500 to 6500 pounds per square inch (psi) for 15 seconds minimum, wit
17、hout deformation or mechanical failure (see 4.6.2 and 6.3.1). 3.5 Firing pin release. The firing pin of the metal parts assembly, less safety pin, chamber, and cartridge retainer, shall release from the cocked position when the application of an axial load of 20 to 35 pounds has withdrawn the initia
18、tor pin 314 inch, maximum (see 4.6.3). . 3.6 Initiator pin security. Application of an axial load of 200 to 220 pounds to the initiator pin of the metal parts assembly shall not withdraw the initiator pin past the safety pin. Load application shall cause no permanent deformation of the safety pin (s
19、ee 4.6.4). 3.7 Metal parts assembly. Parts shall be combined to produce an assembly conforming to the requirements of the metal parts assembly drawing. All threaded joints shall be assembled handtight. 3.8 Protective finish. Protective finish shall be in accordance with the applicable specifications
20、 and shall apply to all surfaces of the component regardless of contour configuration (see 4.6.5). 3.9 Residual magnetism. The metal pacts assembly shall not deflect the indicator of the compass more than 5 degrees in either direction (see 4.6.6). 3.10 Workmanship. Assemblies shall be free of cracks
21、, splits, or other defects which might prevent proper mating with connecting parts or proper functioning of the device. 3.10.1 Metal defects. All components shall be free from cracks, splits, cold shuts, inclusions, porosity, or any similar defect. 3 Provided by IHSNot for ResaleNo reproduction or n
22、etworking permitted without license from IHS-,-,-MIL-I-4b497B H 9999906 L973500 131 MIL-I-46497B 3.10.2 Burr. No part shall have a burr which might interfere with the assembly or function of the item or which might be injurious to personnel handling the item. 3.10.3 Foreign matter. No part or assemb
23、ly shall contain chips, dirt, grease, 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 responsible for the performance of ail inspection requirements (examinati
24、ons 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 reserves the
25、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 (see 6.2). 4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The inspec
26、tion set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the
27、Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirements; however, this does not authorize submission of known defective material, either indicated or actual, n
28、or does it commit the Government to acceptance of defective material. 4.1.2 Quality assurance terms and definitions. Reference shall be made to MIL-STD-109 to define the quality assurance terms used. 4.1.3 Inspections. Inspections shall be in accordance with MIL-A-2550. 4.2 Classification of inspect
29、ions. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.4) b. Quality conformance inspection (see 4.5) 4.3 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be performed under the following conditions: a. Tempe
30、rature: Room ambient (68 to 77F) b. Altitude: Sea level c. Humidity: 50 percent relative, maximum d. Atmospheric pressure: 14.7 psi 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-46497B 9999906 1973501 078 MIL-I-46497B 4.4 First article insp
31、ection. At the beginning of regular production, the contractor shall submit an initial production sample to a Government approved facility for evaluation. The sample shall consist of five metal parts assemblies and ten sets of unassembled parts. The sample shall be manufactured in the same manner an
32、d using the same materials, equipment, processes, and procedures used in regular production. All parts and materials, including packaging and packing, must be the same as will be used for regular production and shall be obtained from the regular source of supply. After inspection and provisional ins
33、pection at source, the first article sample shall be inspected for all requirements of the drawings and specifications. The Government reserves the right to require new first article samples until such time as an acceptable sample is submitted (see 6.4). 4.5 Quality conformance inspection. 4.5.1 Lot
34、. 4.5.1.1 Submission of product. Unless otherwise specified by the contracting activity, formation and identification of lots shall be in accordance with MIL-STD-105. 4.5.1.2 Size of lot. For the purpose of identification and shipment, the shipping lots of metal parts assemblies shall consist of 120
35、0 assemblies maximum, provided the homogeneity requirement of inspection lots have been retained. 4.5.2 Examination. One hundred percent examination shall be performed for all critical defects. Examination for major and minor defects shall be performed in accordance with the classification of defect
36、s. Four power (4x) magnification may be used for inspection of such defects as burr and foreign matter. Inspection for rubber O-rings shall be in accordance with MIL-STD-413. When compliance with the applicable requirement is in doubt as a result of visual examination, the characteristic shall be me
37、asured or gaged to determine acceptability. All nonconforming material shall be rejected. 0 4.5.2.1 Pin, Initiator, Drawing 8595403, covering a detail of Drawing 8595817. Characteristics Defect Method of Inspection Critical None defined Major 101 102 103 104 105 106 107 108 109 110 Concentricity of
38、groove in head with body Symmetry of head with body Diameter of body Diameter of groove in body Diameter of groove in head, min Length to shoulder at head, min Location of groove in head Location of groove in body Profile of groove in body Profile of groove in head 5 Gage Gage Gage Gage Gage Gage Ga
39、ge Gage Measure Measure Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-46497B = 9999906 1973502 TO4 . MIL-I-46497B 111 Metal defective 112 113 114 Burr 115 Foreign matter Protective finish inadequate or defective Surface finish on body and bod
40、y groove improper Minor 20 1 202 203 204 205 206 207 208 209 210 21 1 Diameter of groove in head, rnax Diameter of pull hole Diameter of undercut, min (if applicable) Width of head Width of shoulder at body groove Thickness of head Total length Width of undercut, rnax Location of pull hole Radius or
41、 chamfer missing or incorrect Surface finish improper, except as otherwise classified Visual Visual Visual Visual Visual Gage Gage Gage Gage Gage Gage Measure Measure Measure Visual Visual 4.5.2.2 Spring, Initiator, Drawing 8595406, covering a detail of Drawing 8595817. Critical None defined Major 1
42、01 102 103 104 105 106 Minor 20 1 202 203 Load at specified heights Height solid, rnax Ends incorrect Protective finish inadequate or defective Burr or sharp edges Foreign matter Diameter outside, closed, rnax Diameter inside, min Free length Gage Gage Visual Visual Visual Visual Gage Gage Gage 4.5.
43、2.3 Cap, Drawing 8595404, covering a detail of Drawing 8595817. Critical None defined Major 101 102 103 Pitch diameter of large thread, rnax Minor diameter of large thread, rnax Pitch diameter of small thread, max Gage Gage Gage 6 Provided by IHSNot for ResaleNo reproduction or networking permitted
44、without license from IHS-,-,-104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 Minor 20 1 202 203 204 205 206 207 208 209 210 211 2 12 213 214 215 216 217 218 219 MIL-I-46497B Minor diameter of small thread, max Concentricity of pitch diameter of large thread with pitch dia
45、meter of small thread, including perpendicularity with base of large thread cavity Concentricity of hole counterbore with hole Concentricity of hole with pitch diameter of small thread Symmetry of flats with pitch diameter, large thread Diameter of hole Diameter of hole counterbore Diameter of pin h
46、oles Depth of large thread cavity Depth of small thread cavity Length of effective large thread, min Length of effective small thread, min Height, max Thickness of wall Internal radius at base of large thread cavity missing or incorrect Thread damaged or not full Metal defective Protective finish in
47、adequate or defective Surface finish of hole improper Burr Foreign matter including perpendicularity with base of large thread cavity Pitch diameter of large thread, min Pitch diameter of small thread, min Pitch diameter of setscrew thread Minor diameter of setscrew, max Diameter of boss Diameter of
48、 flange holes Depth of hole counterbore Total length Length between flange holes Width across body flats Width of groove Location of pin holes Location of groove Diameter of groove Length of flange Width of flange Thickness of flange Location of flange hole Location of setscrew holes Gage Gage Gage
49、Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Measure visual Visual Visual Visual Visual Visual Visual Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Measure Measure Measure Measure Measure Measure Measure 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-46477B 9999906 I1773504 887 = MIL-1-46497B 220 Location of initiator pin hole Measure 22 1 Marking missing,
