1、flIL-C-4694bB m 1Ob 198578b 467 m INCH-POUND MiL-46946B(OS) 10 August 1994 SUPERSEDING 3 December 1973 MIL*A(MU) MILITARY SPECIFICATION CARTRIDGE, IMPULSE, M43 ASSEMBLY This specification is approved for use by the Naval Sea Systems Command, Department of the Navy, and is available for use by all De
2、partments and Agencies of the Departments of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for the M43 Impulse Cartridge (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following specific: ions and s andards form a part o
3、f 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 solicitation (see 6.2). SPECIFICATIONS MILITARY MI
4、L-A-2550 Ammunition, General Specification For MIL-A-8625 Anodic Coatings, For Aluminum And Aluminum Alloy Beneficial comments (recommendations, additions, deletions) ancl any pertinent data which may be of use in improving this document should be addressed to: Coder, indian Head Division, Naval Sur
5、face Warfare Center, Standardization Branch (Code 8420), 101 Strauss Avenue, Indian 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 for publ
6、ic release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-4b94bB 9999906 1985787 3T3 m MIL-C-46946B (OS) STANDARDS MILITARY MIL-STD- 105 Sampling Procedures And Tables For Inspection By Attributes MIL-STD- 1 O9 Qual
7、ity Assurance Terms And Definitions MIL-STD-413 Visual Inspection Guide For Elastomeric O-Rings MIL-STD-453 Inspection, Radiographic MIL-STD-8 10 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
8、 shall conform to the applicable drawing and reference specification. 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 ac
9、cordance with the applicable drawing (see 4.7.2). 3.4.3 Protective 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 def
10、ects (see 4.7.4). 3.5.2 Airtightness. Each assembled cartridge shall exhibit no air leakage greater than 1 x la4 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-8
11、10, Method 514.3, Test Procedure I, Test Condition 1-3.2.5 without evidence of any disintegration of the primer, propellant, or igniter, or derangement of any component (see 4.7.7 and 6.2). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-(-4694
12、68 b i1785787 176 3.6 Functional requirements. 3.6.1 Primer sensitivity. The primer shall fire when drop tested at an energy level of 120 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 f
13、ail to fire. 3.6.2.2 Ballistics. The cartridge shall meet the ballistic requirements of a or b: a. The cartridge, when assembled into an acceptable M2A2 Thruster and fired under load (see 6.5) at - 65“ to - 70“F, 65“ to 75“F, and 200“ to 205“F, shall deliver a stroke of 5.7 inches minimum and move a
14、n approved ejection seat (or an equivalent load) either upward or downward with a maximum final velocity of 12 feet per second (fps) so that the ejection seat will be in a final position for ejection. b. The cartridge, when assembled in an M17 or M18 Thruster and fired under load (see 6.5) at - 65“
15、to - 70“F, 65“ to 75“F, and 200“ to 205“F, shall move a 350-pound weight horizontally through a distance of 13 1/4 f 1/16 inches, when fired against a 1%-gravity (g) resistive force. A velocity shall be imparted to the weight that does not exceed 12 feet per second and an acceleration that does not
16、exceed 6 g/second. The cartridge, when fired in a thruster, shall impart to the weight an acceleration where the rate of change of acceleration does not exceed 60 glsecond. 3.6.2.3 Initiation. The thruster shall be fired by a source delivering an output pressure of 700 + 25, - O pounds per square in
17、ch gage Sig) 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 fr
18、om cracks, 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,
19、 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 all inspection requirements (examinations and tests) as speci
20、fied 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 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
21、-,-NIL-C-4b94bB m 9999906 1985790 998 m MIL-C46946B (OS) herein, 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
22、 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 specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in t
23、he 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 practice to ascertain
24、conformance 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
25、 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 (se
26、e 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
27、 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 bal
28、listic samples), 5 assembled cartridges for sealant tests, 10 sets of unassembled components for dimensional and visual examination, and a quantity in accordance with 4.4.2, i.e., cartridges assembled without the igniter and propellant charge for primer sensitivity test. The first article sample sha
29、ll 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
30、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 be tested in accordance with 4.7.7. The Government reserves the right to require new first article samples until an acceptable sample is
31、submitted (see 6.3). 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-46746B 9999906 1985771 824 M Lot Size 3 to 15 16 to 25 26 to 40 41 to 65 66to 110 111 to 180 181 to 300 4.4.1 Examination, tests, and facility. After provisional acceptance
32、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). Sample Size 3 4 5 7 10 15 25 4.4.2 Sample size for primer sensitivity. The number of cartridges assembled without ig
33、niter or propellant to be submitted for primer sensitivity tests shall be in accordance with table I. II 301 to 500 I 30 II 501 to 800 I 35 II 801 to 1300 I 40 II Over 1300 I 50 4.4.3 Temperature conditioning for ballistic test. The sample shall be temperature conditioned and tested to determine com
34、pliance with 3.6.2.2. The sample for firing shall be conditioned to table II. TABLE II. TemDerature conditioning. 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. 6 Provided by IHSN
35、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C46946B(OS) 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 specifi
36、ed in the contract (see 6.2). 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 radiographically and characterist
37、ics defined in accordance with the applicable drawings. One hundred percent examination 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
38、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 determine acceptability. All nonc
39、onforming items shall be rejected. 4.6.1 Cartridge, Impulse, M43 Assembly, Drawing 8593275. Characteristic Defect Method of Inspection Critical 1 2 3 4 5 Major 101 102 103 104 105 106 Minor 20 1 202 203 204 205 206 Any part missing Improper assembly Primer not properly seated Metal defective Marking
40、 missing, incorrect, or illegible Concentricity of head with body Crimp missing or improper Sealant missing Sealant in cavity Foreign matter present O-ring split, creaked, or cut Diameter of body, max Diameter of head, max Total length, max Location of datum diameter Varnish missing or inadequate Fo
41、ld, wrinkle or bulge X-ray /Visual X-ray/Visual X-ray /Visual Visual Visual Gage Visual Visual Visual Visual Visual Gage Gage Gage Gage Visual Visuai 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-9999906 I1985795 Y7T 4.6.2 Primer, Percussion, Dra
42、wing 10551686, covering a detail of 8593275. Critical 1 Improper assembly 2 Any part missing 3 4 Metal defective 5 Primer foil discolored 6 Mixed primers Primer pellet broken, cracked, or dislodged Major 101 Burr 102 Foreign matter present Visual/X-ray Visual/X-ray Visual Visual Visual Visual Visual
43、 Visual 4.6.3 Case, Cartridge, Drawing 8593993, covering a detail of Drawing 8593275. Critical None defined Major 101 102 103 104 105 106 107 108 1oI Minor 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,
44、min Thickness of sidewall, min Straightness of base Protective finish inadequate or defective Foreign matter present Burr or sharp corner Small diameter, max Large diameter, max Total length Location of datum diameter Thickness of sidewall, max Radius or chamfer missing or incorrect, except as other
45、wise Surface finish improper classified Gage Gage Gage Gage Gage Gage Visual Visual Visual Gage Gage Gage Gage Gage Visual Visual 4.6.4 Sealing Disc, Drawing 8593494, covering a detail of Drawing 8593275. Critical None defined 8 Provided by IHSNot for ResaleNo reproduction or networking permitted wi
46、thout license from IHS-,-,-flIL-C-4b94bB = 99999Ob 1985796 306 = Major 101 Diameter, min 102 103 Metal defective 104 105 Burr 106 Foreign matter present Marking missing, incorrect, or illegible Protective finish inadequate or defective Minor 201 Diameter, max 202 Thickness 203 Varnish missing Gage v
47、isual visual visual visual visual Gage Gage visual 4.6.5 Head, Cartridge, Drawing 8593628, covering a detail of Drawing 8593275. Critical None defined -Major 101 102 103 104 105 106 107 108 1 o9 110 111 112 113 114 115 116 Minor 20 1 202 203 204 205 206 207 Concentricity of primer pocket recess with
48、 primer pocket Concentricity of primer pocket with body Concentricity of recess on top of head with primer pocket Concentricity of flange on head with body Diameter of primer pocket Diameter of primer pocket recess, min Diameter of body, min Diameter of flange, min Depth to bottom of primer pocket r
49、ecess Depth of primer pocket to chamber at base Location of datum diameter Metal defective Surface finish of primer pocket, primer pocket recess, and top of head Protective finish inadequate or defective Burr Foreign matter Diameter of primer pocket recess, max Diameter of recess on top of head Diameter of large cavity bottom Diameter of body, ma Diameter of flange, rnax Depth of recess on top of head Total length Gage Gage Gage Gag
