1、 INCH-POUND MIL-DTL-46200C 02 August 2005SUPERSEDING MIL-C-46200B 15 January 1992 MILITARY SPECIFICATION CARTRIDGE, IMPULSE, M42A1 ASSEMBLY This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requireme
2、nts for the M42A1 Impulse Cartridge (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional inf
3、ormation or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Government documents. 2.
4、2.1 Specifications, 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 cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICA
5、TIONS MIL-A-2550 Ammunition, General Specification For MIL-A-8625 Anodic Coatings, For Aluminum And Aluminum Alloy Comments, suggestions, or questions on this document should be addressed to Commander, Indian Head Division, Naval Surface Warfare Center, Technical Information Branch (Code 4230), 101
6、Strauss Avenue, Indian Head, Maryland 20640-5035, or emailed to amanda.pennnavy.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/. AMSC N/A FSC 1377 DISTRIBUTION STATEMENT A: Appro
7、ved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-46200C DEPARTMENT OF DEFENSE STANDARDS MIL-STD-413 Visual Inspection Guide For Elastomeric O-Rings MIL-STD-810 Environmental Engineering Consid
8、erations And Laboratory Tests (Copies of these documents are available online at http:/assist.daps.dla.mil/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.2.2 Other Government documents, drawings, and publications. The following Gove
9、rnment drawings form a part of this specification to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation or contract. DRAWINGS NAVAL ORDNANCE STATION (CAGE Codes 19200 and 19203) DL8593889 Cartridge, Impulse, M42A1 Assembly 5184824 Test Fixture, M4
10、2A1 Impulse Cartridge (5.2 Cu. In.) 8797435 Box, Fiberboard (Inner), Packing, Ammunition, For Cartridge, Impulse M41A1 8797436 Box, Packing, Ammunition, For Cartridge, Impulse M42A1 9223384 Box, Fiberboard (Outer), Alternative Packing Ammunition, For Cartridge, Impulse M42A1 (Application for copies
11、should be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Attn: Technical Information Branch (Code 4230), Indian Head, MD 20640-5035.) 2.3 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise s
12、pecified, the issues of these documents are those cited in the solicitation or contract. AMERICAN SOCIETY FOR QUALITY ASQ A8402 Quality Management and Quality Assurance - Vocabulary ASQ Zl.4 Sampling Procedures and Tables for Inspection by Attributes (Copies of these documents are available online a
13、t http:/www.asq.org/ or from the American Society for Quality, PO Box 3005, 611 E. Wisconsin Ave., Milwaukee, WI 53201-4606.) 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-46200C AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM E1742
14、 Standard Practice for Radiographic Examination (Copies of this document are available online at http:/www.astm.org/ or from the American Society for Testing and Materials Customer Service, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) 2.4 Order of precedence. In the event of a conflict
15、between the text of this document and the references cited herein, the text of this document 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 in the contrac
16、t or purchase order, a first article sample shall be subjected to first article inspection (see 4.4, 6.2, and 6.3). 3.2 Conformance to documents. The M42A1 Impulse Cartridge covered by this specification shall be manufactured in accordance with DL8593889. 3.3 Materials. All materials used in the man
17、ufacture of the cartridges shall conform strictly to the specifications referred to on the respective drawings unless specific approval in writing covering a departure therefrom has been obtained from the cognizant Navy design activity prior to manufacture. When alternate materials or methods of man
18、ufacture are specified on the drawings, the bidders selections shall be clearly stated in the proposal. 3.4 Components. 3.4.1 Primary components. For the purpose of this specification, the primer, igniter charge and the cartridge propellant charge are considered primary components. Only primary comp
19、onents from a single lot shall be used in a production lot of cartridges; however, one primary component production lot may be used in more than one cartridge production lot. 3.4.1.1 Primer. The primer shall conform to the applicable drawing and reference specification. Prior to assembly into a cart
20、ridge, the primer shall be visually examined in accordance with 4.6.2 and radiographically examined for defects as specified in 4.7.1. 3.4.2 Hardness. The hardness of each component part shall be in accordance with the applicable drawing (see 4.7.2). 3.4.3 Protective finish. The finish of each compo
21、nent part shall be in accordance with MIL-A-8625 and the applicable drawing (see 4.7.3). 3.5 Assembly. 3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-46200C 3.5.1 Radiographic examination. Each cartridge assembly shall be radiographically e
22、xamined for defects (see 4.7.4). 3.5.2 Leak Test. Each assembled cartridge shall exhibit no air leakage greater than 1 x 10-4standard cubic centimeters of air per second at a 14 psia pressure differential (see 4.7.5). 3.5.3 Vibration. The assembled cartridge shall withstand vibration as prescribed i
23、n MIL-STD-810, Method 514.3, Test Procedure I, Test Condition I-3.2.5 without evidence of any disintegration of the primer, propellant, or igniter, or derangement of any component (see 4.7.7 and 6.2). 3.6 Functional requirements. 3.6.1 Primer sensitivity. The primer shall fire when drop tested at an
24、 energy level of 60 inch-ounces in a sectioned cartridge void of igniter and propellant charge (see 4.7.8.1). 3.6.2 Cartridge performance. 3.6.2.1 Misfires. The cartridge shall not fail to fire. 3.6.2.2 Ballistics. The cartridge, when tested in closed bomb, Drawing 5184824, shall comply with the req
25、uirements of table I. TABLE I. Ballistic requirements. Temperature (F) Maximum pressure (psig) Lower Upper Ignition Delay Time, max (ms) Time to P-max, max (ms) - 60 to 70 2750 3575 15 15 65 to 75 2750 3575 15 15 195 to 205 2750 3575 15 15 3.7 Workmanship. Cartridges shall be free of cracks, splits,
26、 or other defects which might prevent proper mating with connecting parts or proper functioning of the device. 3.7.1 Metal defects. All components shall be free from cracks, splits, cold shuts, inclusions, porosity, or any similar defect. 3.7.2 Burr. No part shall have a burr which might interfere w
27、ith the assembly or function of the item or which might be injurious to personnel handling the item. 4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-46200C 3.7.3 Foreign matter. No part or assembly shall contain chips, dirt, grease, rust, co
28、rrosion, or other foreign matter. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.4) b. Quality conformance inspection (see 4.5) 4.1.1 Inspections. Inspections shall be in accordance with MI
29、L-A-2550 and ASTM E1742. 4.2 Quality assurance terms and definitions. Reference shall be made to ASQ A8402 to define the quality assurance terms used. 4.3 Inspection conditions. Unless otherwise specified in the contract or purchase order (see 6.2), inspection conditions shall be as follows: a. Temp
30、erature: Room ambient 20to 25C (68to 77F) b. Altitude: Sea level c. Humidity: 50 percent relative, maximum d. Atmospheric: 14.7 psia 4.4 First article inspection. At the beginning of regular production, the contractor shall submit a first article sample to a Government approved facility for evaluati
31、on. The sample shall consist of 21 assembled cartridges for ballistics testing including 12 for vibration tests (to be selected from ballistic samples), 5 assembled cartridges for sealant tests, 10 sets of unassembled components for dimensional and visual examination, and a quantity in accordance wi
32、th 4.4.2, i.e., cartridges assembled without the igniter and propellant charge for primer sensitivity test. The first article sample shall be manufactured using the same materials, equipment, processes, and procedures as used in regular production. All parts and materials, including packaging and pa
33、cking, shall be the same as used for regular production and shall be obtained from the same source of supply. When it becomes necessary to make a change in either the primer, propellant, or igniter lot after initial production, 12 assembled cartridges from the first production lot thereafter shall b
34、e tested in accordance with 4.7.7. The Government reserves the right to require new first article samples until such time as an acceptable sample is submitted (see 6.3). 4.4.1 Examination, tests, and facility. After provisional acceptance at source, the sample shall be inspected for all requirements
35、 of the drawings and specifications at a Government laboratory or other such facility specified in the contract (see 6.2). 4.4.2 Sample size for primer sensitivity. The number of cartridges assembled without igniter or propellant to be submitted for primer sensitivity tests shall be in accordance wi
36、th table II. 5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-46200C TABLE II. Primer sensitivity. Lot Size Sample Size 3 to 15 3 16 to 25 4 26 to 40 5 41 to 65 7 66 to 110 10 111 to 180 15 181 to 300 25 301 to 500 30 501 to 800 35 801 to 130
37、0 40 Over 1300 50 4.4.3 Temperature conditioning for ballistic test. The sample shall be temperature conditioned and tested to determine compliance with 3.6.2.2. The sample for firing shall be conditioned to table III. TABLE III. Temperature conditioning. Temperature (F) Not vibrated Vibrated -60 to
38、 -70 3 4 65 to 75 3 4 195 to 205 3 4 4.4.4 First article failure. Failure of the sample to comply with the requirements of the drawings and specifications shall result in first article sample disapproval. 4.5 Quality conformance inspection. 4.5.1 Lot. 4.5.1.1 Submission of product. The product shall
39、 be submitted in accordance with ASQ Z1.4. 4.5.1.2 Lot size. The production lot size shall be as specified in the contract (see 6.2). 6Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-46200C 4.5.2 Examination and tests. The quality conformance
40、 sample shall be subjected to the examinations of 4.6 and all the test procedures of 4.7 except for 4.7.7. 4.6 Examination. All cartridges and components shall be examined visually and radiographically and characteristics defined in accordance with the applicable drawings. One hundred percent examin
41、ation shall be performed for all critical defects. Examination for major or minor defects shall be performed on a defect basis in accordance with the classification of defects. Inspection for elastomeric O-rings shall be in accordance with MIL-STD-413. Four power (4X) magnification may be used in pe
42、rforming visual examination for such defects as burrs and foreign matter. When compliance is in doubt as a result of visual inspection, the characteristic shall be measured or gaged to determine acceptability. All nonconforming items shall be rejected. 4.6.1 Cartridge, Impulse, M42A1 Assembly, Drawi
43、ng 8593889. Characteristic Defect Method of Inspection Critical 1 Any part missing X-ray/Visual 2 Improper asembly X-ray/Visual 3 Primer not properly seated X-ray/Visual 4 Metal defective Visual 5 Marking missing, incorrect, or illegible Visual Major 101 Concentricity of head with body Gage 102 Crim
44、p missing or improper Visual 103 Sealant missing Visual 104 Sealant in cavity Visual 105 Foreign matter present Visual Minor 201 Diameter, max Gage 202 Diameter of head, max Gage 203 Total length, max Gage 204 Location of datum diameter Gage 205 Varnish missing or inadequate Visual 7Provided by IHSN
45、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-46200C 4.6.2 Primer, Percussion, Drawing 10551688, covering a detail of 8593889. Characteristic Defect Method of Inspection Critical 1 Improper asembly Visual/X-ray 2 Any part missing Visual/X-ray 3 Primer pell
46、et broken, cracked, or dislodged Visual 4 Metal defective Visual 5 Primer foil discolored Visual 6 Mixed primers Visual Major 101 Burr Visual 102 Foreign matter present Visual 4.6.3 Case, Cartridge, Drawing 8594158, covering a detail of Drawing 8593889. Characteristic Defect Method of Inspection Cri
47、tical 1 Metal defective Visual Major 101 Concentricity of large diameter with small diameter Gage 102 Diameter of head, min Gage 103 Thickness of base, min Gage 104 Diameter of body, min Gage 105 Thickness of sidewall, min Gage 106 Straightness of base Gage 107 Protective finish inadequate or defect
48、ive Visual 108 Foreign matter present Visual 109 Burr or sharp corner Visual Minor 201 Small diameter, max Gage 202 Large diameter, max Gage 203 Total length Gage 204 Location of datum diameter Gage 205 Thickness of sidewall, max Gage 206 Radius or chamfer missing or incorrect, except as otherwise clasified Visual 207 Surface finish improper Visual 8Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,
