1、MIL-C-4b941A W 999990b 1778758 568 I INCH-POUND I MIL-C-4694 1 A 11 February 1993 SUPERSEDING 1 August 1963 MIL-C-4694 1 (MU) MILITARY SPECIFICATION CARTRIDGE, IMPULSE, M146 ASSEMBLY is specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope
2、. This specification covers the requirements for the M146 Impulse Cartridge (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications und standards. The following specifications and standards form a part of this document to the extent specified herein. Unless otherwise specif
3、ied, 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 solicitation (see 6.2). SPECIFICATIONS MILITARY MIL-A-2550 Ammunition, General Specification For MIL-A-8625 Anodic Coatin
4、gs, For Aluminum And Aluminum Alloy Beneficial comments (reconunemlations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Mian Heal Division, Naval Surface Warfare Center, Standardization Branch (Code 8420), 101 Strauss
5、Avenue, Mian Head, MD 20640-5035, by using the Standardization Document improvement Proposal (DD Form 1426) appearing at the end of this document or by sending a letter. AMSC NIA FSC 1377 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. o Provided by IHSNot for Resal
6、eNo reproduction or networking permitted without license from IHS-,-,-MIL-C-4694LA = 999990b 1778759 4T4 R1 MIL-C-46941 A STANDARDS MILITARY MIL-STD- 105 MIL-STD- 109 MIL-STD-4 13 MIL-STD-453 Inspection, Radiographic MIL-STD-8 10 MS-28741 Sampling Procedures And Tables For Inspection By Attributes Q
7、uality Assurance Terms And Definitions Visual Inspection Guide For Elastomeric O-Rings Environmental Test Methods 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 spec
8、ification. Prior to assembly into a cartridge, 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 Pro
9、tective finish. The finish of each component part shall be in accordance with MIL-A-8625 and the applicable drawing (see 4.7.3). 3.5 Assembly. 3.5.1 Radiographic examination. Each cartridge assembly shall be radiographically examined for defects (see 4.7.4). 3.5.2 Airtightness. Each assembled cartri
10、dge shall exhibit no air leakage greater than 1 x 10-4 standard 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 in MIL-STD-810, Method 514.3, Test Procedure I, Test Condition 1-3.2.5
11、without evidence of any disintegration of the primer, propellant, or igniter, or derangement of any component (see 4.7.7 and 6.2). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-4694LA 9999906 L7767bL 052 W MIL-C-46941 A 3.6 Functional requi
12、rements. 3.6.1 Primer sensitivity. The primer shall fire when drop tested at an 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 ca
13、rtridge when assembled into an acceptable M16 Thruster and fired at -60“ to -70“F, 65“ to 75“F, and 195“ to 205F and mounted in a fixture shall develop thrust not to exceed 550 pounds and complete a stroke ranging from 3.000 inches, minimum, to 3.137 inches, maximum. Time between initiation of cartr
14、idge and completion of stroke shall not be less than 70 milliseconds nor more than 175 milliseconds. Ignition delay time (see 6.5.1) shall not exceed 15 milliseconds. 3.6.2.3 Initiation. The thruster shall be fired by a source delivering an output pressure of 700 + 25, - O pounds per square inch gag
15、e (psig) at the end of 15 feet of aircraft hose, MS28741-4 at 70 f 5F. 3.7 Workmanship. Cartridges shall be free of cracks, splits, 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 cra
16、cks, splits, cold shuts, inclusions, porosity, or any similar defect. 3.7.2 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. 3.7.3 Foreign matter. No part or assembly shall contain chips, dirt,
17、 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 all inspection requirements (examinations and tests) as specified h
18、erein. 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 right to perform any of the i
19、nspections 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 inspection set forth in this specif
20、ication 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 ail products or supplies submitted to the Government for O a O 4 Provid
21、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-w .4 MIL-C-4b94LA 999990b L7787b2 T99 MIL-C-4694 1 A acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain c
22、onformance to requirements; however, this does not authorize submission of known defective material, either indicated or actual, nor 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
23、quality assurance terms used. 4.1.3 Inspections. Inspections shall be in accordance with MIL-A-2550 and MIL-STD-453. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.4) b. Quality conformance inspection (see
24、 4.5) 4.3 Inspection conditions. Unless otherwise specified in the contract or purchase order (see 6.2), inspection conditions shall be as follows: a. Temperature: Room ambient 20“ to 25“ C (68“ to 77“ F) b. Altitude: Sea level c. Humidity: 50 percent relative, maximum d. Atmospheric: 14.7 psia 4.4
25、First article inspection. At the beginning of regular production, the contractor shall submit a first article sample to a Government approved facility for evaluation. The sample shall consist of 21 assembled cartridges for ballistics testing including 12 for vibration tests (to be selected from ball
26、istic samples), 5 assembled cartridges for sealant tests, i0 sets of unassembled components for dimensional and visual examination, and a quantity in accordance with 4.4.2, .e., cartridges assembled without the igniter and propellant charge for primer sensitivity test. The first article sample shall
27、 be manufactured using the same materials, equipment, processes, and procedures as used in regular production. All parts and materials, including packaging and packing, shall be the same as used for regular production and shall be obtained from the same source of supply. When it becomes necessary to
28、 make a change in either the primer, propellant, or igniter lot after initial production, 12 assembled cartridges from the first production lot thereafter shall be tested in accordance with 4.7.7. The Government reserves the right to require new first article samples until such time as an acceptable
29、 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 of the drawings and specifications at a Government laboratory or other such facility specified in the contract (see 6.2). 4.4.2 Sample si
30、ze for primer sensitivity. The number of cartridges assembled without igniter or propellant to be submitted for primer sensitivity tests shall be in accordance with table I. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-4b941A = 999990b 177
31、87b3 925 *. 66 to 110 111 to 180 18 1 to 300 301 to 500 501 to 800 801 to 1300 Over 1300 MIL-C-46941A 10 15 25 30 35 40 50 TABLE I. Primer sensitivitv. 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
32、sample for firing shall be conditioned to table II. TABLE II. Temerature conditioning, II Temperature (OF) I Not vibrated I Vibrated 11 195 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 trst article sa
33、mple disapproval. 4.5 Quality conformance inspection. 4.5.1 Lot. 4.5.1.1 Submission of product. The product shall be submitted in accordance with MIL-STD-105. 4.5.1.2 Lot size. The production lot size shall be as specified in the contract (see 6.2). 6 Provided by IHSNot for ResaleNo reproduction or
34、networking permitted without license from IHS-,-,-MIL-C46941A 4.5.2 Examination and tests. The quality conformance 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 r
35、adiographically and characteristics defined in accordance with the applicable drawings. One hundred percent examination shall be performed for ali critical defects. Examination for major or minor defects shall be performed on a defect basis in accordance with the classification of defects. Inspectio
36、n for elastomeric O-rings shall be in accordance with MIL-STD-413. Four power (4X) magnification may be used in performing 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 d
37、etermine acceptability. All nonconforming items shall be rejected. 4.6.1 Cartridge, Impulse, M146 Assembly, Drawing 8596426. Characteristic Defect Critical 1 2 3 4 5 6 7 Major 101 102 103 104 105 106 107 Minor 20 1 202 203 204 205 206 Primer seating depth Depth to primer pocket face Any part missing
38、 Improper assembly Primer not properly seated Metal defective Marking missing, incorrect, or illegible Concentricity of head with body Straightness of head Depth of recess on head Crimp missing or improper Sealant missing Sealant in cavity Foreign matter present Diameter of body, max Diameter of hea
39、d, max Total length, max Location of datum diameter Varnish missing or inadequate Fold, wrinkle or bulge Method of Inspection Gage Gage X-ray/Visual X-ray/Visual X-ray/Visual Visual Visual Gage Gage Gage Visual Visual Visual Visual Gage Gage Gage Gage Visual Visual 7 Provided by IHSNot for ResaleNo
40、reproduction or networking permitted without license from IHS-,-,-MIL-C-YbqYlA = 999990b l7787b5 7T8 MIL-C-4694 1 A 4.6.2 Primer, Percussion, Drawing 10551688, covering a detail of 8596426. Critical 1 Improper assembly 2 Any part missing 3 4 Metal defective 5 Primer foil discolored 6 Mixed primers P
41、rimer pellet broken, cracked, or dislodged Major 101 Burr 102 Foreign matter present VisuaUX-ray Visual/X-ray visual Visual Visual visual visual Visual 4.6.3 Case, Cartridge, Drawing 8596428, covering a detail of Drawing 8596426. Critical None defined Major 101 102 103 104 105 106 107 1 O8 109 Minor
42、 20 1 202 203 204 205 206 207 Concentricity of large diameter with small diameter Diameter of head, min Thickness of base, min Diameter of body, min Thickness of sidewall, min Straightness of base Protective finish inadequate or defective Foreign matter present Burr or sharp corner Gage Gage Gage Ga
43、ge Gage Gage Visual Visual Visual Small diameter, max Gage Large diameter, max Gage Total length Gage Location of datum diameter Gage Thickness of sidewall, max Gage Radius or chamfer missing or incorrect, except as otherwise Visual Surface finish improper Visual classified 8 e . O e O i Provided by
44、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-4b94lIA = 999990b 17787bb 634 W MIL-(2-4694 1A 4.6.4 Head, Cartridge, Drawing 8596427, covering a detail of Drawing 8596426. Critical 1 Major 101 102 103 104 105 106 107 108 109 110 111 112 Minor 20 1 202 20
45、3 204 205 206 Thickness of metallic web between flash hole and igniter cavity Concentricity of primer pocket recess with primer pocket Concentricity of body with primer pocket Diameter of body, min Diameter of primer pocket Diameter of primer pocket recess, min Depth of primer pocket Thickness of ba
46、se Metal defective Protective finish Surface finish or primer pocket improper Burr Foreign matter Diameter of body, max Diameter of primer pocket recess, max Total length Angle on head Radius incorrect Surface finish improper, except as otherwise classified Gage Gage Gage Gage Gage Gage Gage Gage Vi
47、sual Visual Visual Visual Visual Gage Gage Gage Gage Visual Visual 4.6.5 Ring, Cartridge, Drawing 8596429, covering a detail of Drawing 8596426. Critical None defined Major 101 102 103 104 105 106 Minor 20 1 202 203 204 205 Concentricity of inside with outside diameter Diameter outside, min Metal de
48、fective Protective finish Burr Foreign matter Diameter inside Diameter outside, max Total length Radius missing or incorrect Surface finish improper Gage Gage Visual Visual Visual Visual Gage Gage Gage Visual Visual 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without licen
49、se from IHS-,-,-MIL-C-4694LA m 0b 17787b7 570 MIL-C46941A 4.6.6 Gasket, Drawing 8596430, covering a detail of Drawing 8596426. Critical None defined Major 101 Diameter, min 102 Material defective 103 Flash 104 Foreign matter Minor 20 1 Diameter, max 202 Width 203 Thickness 4.6.7 Box, Fiberboard (Inner), Ammunition, Packing, Drawing 8830980. Critical None defined Major None defined Minor 20 1 Contents loose 202 Sepa
