1、.f s. I MIL-C-46221B 13 9999906 0575618 7 INCH-POUND MIL-C-4622 1B 23 June 1992 SUPERSEDING MIL-C4622 1 Ao 6 October 1966 O MILITARY SPECIFICATION CARTRIDGE, IMPULSE, M37 ASSEMBLY mis specijcation is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. T
2、his specification covers the requirements for the M37 Impulse Cartridge (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following speci,cations and standards form a part of this document to the extent specified herein. Unless otherwise specified,
3、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). 0 SPECIFICATIONS MILITARY MIL-A-2550 Ammunition, General Specification For MIL-A-8625 Anodic Coatings,
4、 For Aluminum And Aluminum Alloy Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commander, Indian Head Division, Naval Surface Warfare Center, Standardization Branch (Code 0343), 101 Strauss Av
5、enue, 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 N/A FSC 1377 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo
6、reproduction or networking permitted without license from IHS-,-,-NIL-C-462218 13 m 9999906 0575639 9 m MIL-C-4622 1B .* 1. STANDARDS MILITARY MIL-STD-105 Sampling Procedures And Tables For Inspection By Attributes MIL-STD-109 Quality Assurance Terms And Definitions MIL-STD-413 Visual Inspection Gui
7、de For Elastomeric O-Rings MIL-STD-453 Inspection, Radiographic MIL-STD-8 10 Environmental Test Methods 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 this d
8、ocument, 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-,-,-I *- MIL-C-46221B 13 9999906 0575620 .i MIL-C-4622 1 B 3. REQUIREMENTS 3.1 First article. Wh
9、en specified in the contract 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 M37 Impulse Cartridge covered by this specification shall be manufactured in accordance with DL8593745. 3.3 Materiais. All
10、materials used in the manufacture 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 ma
11、terials or methods of manufacture 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 comp
12、onents. Only primary components 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. Prio
13、r 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 Protective finish.
14、 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 cartridge shall exhib
15、it no air leakage greater than 1 x lo4 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 10, Method 514.3, Test Procedure I, Test Condition 1-3.2.5 without evidenc
16、e 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-C-4622LB 33 9999906 0575623 7 MIL-C-4622 1 B 3.6 Functional requirements. 3.6.1
17、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 cartridge, when t
18、ested in an acceptable M4A1 Catapult, shall propel a 325 pound mass horizontally and shall comply with the requirements of table I. TABLE I. Ballistic requirements. Temperature (OF) - 60 to - 70 65 to 75 160 to 170 Velocity, min Max. peak acceleration Max. rate of Change Ignition delay time, max (ms
19、) of acceleration (g/s) (W load cell (g) 33.0 10.0 75 150 38.0 10.2 103 150 41 .O 13.4 120 150 3.6.2.3 Initiation. The catapult shall be fired by a source delivering an output equal to that of an M3A2 Initiator at the end of 10 feet of aircraft hose, MS28741-4, at 70“ f 5F. 3.7 Workmanship. Cartridg
20、es 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 cracks, splits, cold shuts, inclusions, porosity, or any similar defect. 3.7.2 Burr. No part shall
21、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, grease, rust, corrosion, or other foreign matter. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsib
22、ility 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 herein. Except as otherwise specified in the contract or purchase order, the contractor may use h
23、is 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 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M
24、IL-C-Yb22LB 13 9997706 0575b22 9 MIL-C-4622 1B 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 secti
25、ons 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 the specification shall not relieve the contractor of the responsibility of ensuring that all products or sup
26、plies 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 conformance to requirements; however, this does not authorize submission of known defective material, eith
27、er 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 quality assurance terms used. 4.1.3 Inspections. Inspections shall be in accordance with MIL-A-2550 and M
28、IL-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 4 S) 4.3 Inspection conditions. Unless otherwise specified in the contract or purchase order (see 6.2),
29、inspection conditions shall be as follows: a - 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 First article inspection. At the beginning of regular production, the contractor shall submit a first
30、 article sample to a Government approved facility for evaluation. The sample shall consist of 21 assembkd 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 dimens
31、ional 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 shall be manufactured using the same materials, equipment, processes, and procedures as used in regular pr
32、oduction. 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 make a change in either the primer, propellant, or igniter lot after initial production, 12 assemble
33、d 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 sample is submitted (see 6.3). 5 Provided by IHSNot for ResaleNo reproduction or networking permitte
34、d without license from IHS-,-,-MIL-C-4622LB 13 9979906 0575b23 O D . 1 MIL-C-4622 1 B I Lotsize Sample Sue 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
35、or other such facility specified in the contract (see 6.2). Temperature (OF) 60 to -70 65 to 75 160 to 170 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 with table II. Not
36、 vibrated Vibrated 3 4 3 4 3 4 TABLE II. Primer sensitivitv. 3 to 15 16 to 25 26 to 40 I 11 41 to 65 7 ir izo llo- I 10 II 111 to 180 I 15 II 181 to300 I 25 301 to 500 30 501 to 800 35 801 to 1300 40 Over 1300 50 4.4.3 Temperature conditioning for ballistic test. The sample shall be temperature cond
37、itioned and tested to determine compliance with 3.6.2.2. The sample for firing shall be conditioned to table III. TABLE III. TemDerature conditionine. 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 s
38、ample disapproval. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-4b221B 13 9999906 0575b24 2 MIL-C-4622 1B 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-S
39、TD-105. 4.5.1.2 Lot size. The production lot size shall be as specified 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 compon
40、ents shall be examined visually and radiographically 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
41、 classification of defects. Inspection 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 character
42、istic shall be measured or gaged to determine acceptability. All nonconforming items shall be rejected. 4.6.1 Cartridge, Impulse, M37 Assembly, Drawing 8593745. Characteristic Defect Method of Inspection Critical 1 2 3 4 5 Major 101 102 103 104 105 106 Minor 201 202 203 204 205 206 Any part missing
43、Improper assembly Primer not properly seated Metal defective Marking 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 len
44、gth, max Location of datum diameter Varnish missing or inadequate Fold, wrinkle or bulge 7 X-ray /Visual X-ray/Visual X-ray/Visual Visual Visual Gage Visual Visual Visual Visual Visual Gage Gage Gage Gage Visual Visual Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
45、nse from IHS-,-,-MIL-C-4622LB 17 W 9999906 0575625 4 MIL-C-4622 1B 4.6.2 Primer, Percussion, Drawing 5184909, covering a detail of 8593745. 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 1
46、01 Burr 102 Foreign matter present VisualIX-ray VisualIX-ray Visual Visual Visual Visual Visual Visual 4.6.3 Case, Cartridge, Drawing 8593746, covering a detail of Drawing 8593745. Critical None defined Major 101 102 103 104 105 106 107 108 109 Concentricity of large diameter with small diameter Dia
47、meter 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 Gage Gage Gage Visual Visual Visual Minor 20 1 Small diameter, max Gage 202 Large diame
48、ter, max Gage 203 Total length Gage 204 Location of datum diameter Gage 205 Thickness of sidewall, max Gage 206 Visual 207 Surface finish improper Visual Radius or chamfer missing or incorrect, except as otherwise classified 4.6.4 Sealing Disc, Drawing 8593494, covering a detail of Drawing 8593745.
49、Critical None defined 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-IIL-C-4622LB L3 9999906 0575b2b b = MIL-C-4622 1 B Major 101 Diameter, min 102 103 Metal defective 104 1 05 Burr 106 Foreign matter present Marking missing, incorrect, or illegible Protective finish inadequate or defective Minor 20 1 Diameter, max 202 Thickness 203 Varnish missing Gage Visual Visual
