1、 I _ Beneficial comments (recommendations, additions, deletions) an any pertinent data which may be of use in improving this document should be addressed to: Commander, Mian Head Division, Navai Surface Warfare Center, Standarization Branch (Code 3730), 101 Strauss Avenue, Inciian Head, MD 2040-5035
2、, by using the Standardization Document Improvement Proposai (DD Form 1426) appearing at the erd of this document or by MIL-C-4540C 13 m 999990b 0508706 T m I INCH-POUND I MIL-C-45408C 17 March 1992 SUPERSEDING MIL-C45408BlU) 5 April 1972 MILITARY SPECIFICATION CARTRIDGE, IMPULSE, M44A1 ASSEMBLY his
3、 specijcation is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements for the M44A1 Impulse Cartridge (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The followin
4、g specifications 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 solici
5、tation (see 6.2). SPECIFICATIONS MILITARY MIL-A-2550 Ammunition, General Specification For MIL-A-8625 Anodic Coatings, For Aluminum And Aluminum Alloy AMSC NIA _ FSC 1377 DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. Licensed by Information Handling ServicesNIL-C-
6、45YOAC 13 7777906 0508707 L MIL-C-45408C 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 Guide For Elastomeric O-Rings MIL-STD-453 Inspection, Radiographic MIL-STD-8 10 Enviro
7、nmental 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 specification. Prior to assembly into a cartridge, the primer shall be visually examined in accor
8、dance 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 component part shall be in accordance with MIL-A-8625 and
9、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 exhibit no air leakage greater than 1 x lo4 standard cubic centimeters of air per s
10、econd 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 without evidence of any disintegration of the primer, propellant, or igniter, or derangement o
11、f any component (see 4.7.7 and 6.2). 3 Licensed by Information Handling ServicesMIL-C-q5408C 13 9999906 0508709 5 = MIL-C-45408C 3.6 Functional requirements. 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
12、 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 5185085, shall comply with the requirements of table I. TABLE I. Ballistic reauirements. Temperature (Op)
13、Maximum pressure (psig) Igition Delay Time, Time to P-max, Lower Upper max (ms) rnax (ms) I -6Oto-70 2945 none 65 180 65 to 75 2945 none 65 180 195 to 205 2945 none 65 180 3.7 Workmanship. Cartridges shall be free of cracks, splits, or other defects which might prevent proper mating with connecting
14、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 with the assembly or function of the item or which might be injurious
15、 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 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is r
16、esponsible 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 his own or any other facilities suitable for the performance of the inspection requirements specified he
17、rein, unless disapproved by the Government. The Government reserves the right to perform any of thaie 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 O Licensed by Information Hand
18、ling ServicesMIL-C-4540C 33 E 9999906 O508730 3 $,I.% Responsibility for compliance. All items shall inet 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 my inspec
19、tion requirements in the specification shall not relieve the contractor of the respomsibility 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
20、practice to ascertain conformance to requirements; however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Goverment to acceptance of defective materid. 4.1.2 Quality assurance term and definitin. Reference shall be made to MIL-STD-
21、109 to define the quality assurmce terms usd. 4.6.3 Pnsgtxtiom. 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
22、inspection (see 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:
23、 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 evaluation. The sample shall consist of 21 assembled cartridges for ballistics testing including 12 for vibration tests (to be sel
24、ected from ballistic 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, Le., cartridges assembled without the igniter and propellant charge for primer sensitivity test. The first artic
25、le sample shall be manufactured using the same materials, equipment, processes, and procedures as used in regular production. A1 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 become
26、s 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 be tested in accordance with 4.7.7. The Government reserves the right to require new first article samples until such time as
27、 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 of the drawings and specifications at a Government laboratory or other such facility specified in the contract (see 6.2). 5
28、 Licensed by Information Handling Services MIL-C-LI5408C 13 E 9977906 0508713 3 I, MIL-C-45408C 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. . TABLE II. Pr
29、imer sensitivitv. 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 1300 40 Over 1300 50 4.4.3 Temperature conditioning for ballistic test. The sample shall be temperature conditioned and tested to determine co
30、mpliance with 3.6.2.2. The sample for firing shall be conditioned to table III. TABLE III. TemPerature conditioning. Temperature (O F) Not vibrated Vibrated -60 to -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 4
31、.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. and specifications shall result in first article sample disapproval. 6 a Licensed by Information Handling ServicesMIL-C-45408C 13 E 9999906 0508712 5 a 4.5.1.2
32、Lo% size- The production lot size shall be as specifid in tias contract (see 6.2). 4.52 Examination and tats. The quality conformance sample: shJ1 be subjected to the examinations of 4.6 and dl the test procedures of 4.7 except for 4.7.7. 4.6 Examinrstion. Ail cartridges and components shall be exam
33、ined visually and radiographically and characteristics defined in accordance wih 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 d
34、efects. Inspection for elastomeric O-rings shall be in accordance with MlL-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 measu
35、red or gaged to determine acceptability. All nonconforming items shall be rejected. 4.6.1 Cartridge, Impulse, M44A1 Assembly, Drawing 8593276. Characteris tic Defect Method of Inspection Critical 1 2 3 4 5 o Major Any part missing Improper assembly Primer not properly seated Metal defective Marking
36、missing, incorrect, or illegible X-ray Nisual X-ray Nisual X-ray /Visual Visual Visual 101 102 103 104 105 Concentricity of head with body Crimp missing or improper Sealant missing Sealant in cavity Foreign matter present Gage Visual Visual Visual Visual Minor 20 1 Diameter, max 202 Diameter of head
37、, max 203 Total length, max 204 Location of datum diameter 205 Varnish missing or inadequate Gage Gage Gage Gage Visual 7 Licensed by Information Handling Services- _ / MIL-C-45408C 13 m 9999906 O508713 7 w - MIL-C-45408C 4.6.2 Primer, Percussion, Drawing 10551688, covering a detail of 8593276. Char
38、acteristic Defect Method of Inspection 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 VisualK-ray visual fi-ray Visual Visual Visual Visual Visual Visua
39、l 4.6.3 Case, Cartridge, Drawing 8594158, covering a detail of Drawing 8593276. Critical 1 Major 101 102 103 104 105 106 107 10s 109 Minor 20 1 202 203 204 205 206 207 Metal defective Concentricity of large diameter with small diameter Diameter of head, min Thickness of base, min Diameter of body, m
40、in 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 lengh Location of datum diameter Thickness of sidewall, max Radius or chamfer missing or incorrect, except as otherwi
41、se Surface finish improper classified Visual Gage Gage Gage Gage Gage Gage Visual Visual Visual Gage Gage Gage Gage Gage Visual Visuai 8 Licensed by Information Handling ServicesMIL-C-45408C 33 999990b 0508734 9 m MIL-C-45408C 4.6.4 Head, Cartridge, Drawing 8594159, covering a detail of Drawing 8593
42、276. Critical 1 Metal defective Major 101 102 103 104 1 05 106 107 108 109 110 111 112 113 114 Minor 20 1 202 203 204 205 206 207 208 209 210 211 Concentricity of primer pocket recess with primer pocket Concentricity of counterbore, large end, with primer pocket Concentricity flange with primer pock
43、et Concentricity body, small end, with primer pocket Diameter of flange, minimum Diameter of primer pocket recess, maximum Diameter of primer pocket Thickness of metal at base of primer pocket recess Depth to base of large counterbore, large end Depth of primer pocket Protective finish inadequate or
44、 defective Surface finish of primer pocket Burr Foreign matter Diameter of flange, maximum Diameter across taper, large end, at specified location Diameter of large counterbore Diameter of primer pocket recess, minimum Diameter of body Depth of taper on flange Total length Length of taper on flange
45、Location of datum diameter Radius or chamfer missing or incorrect Surface finish improper, except as otherwise specified Visual Gage Gage Gage Gage Gage Gage Gage Gage Gage Gage Visual Visual Visual Visual Gage Gage Gage Gage Gage Gage Gage Gage Gage Visual Visual 4.6.5 Box, Fiberboard (Inner), Ammu
46、nition, Packing, Drawing 8797373. Critical None defined Characteristic Defect Method of Inspection Major None defined 9 Licensed by Information Handling Services_ MIL-C-4540C 13 W 9999906 0508735 O MIL-C-45408C Minor 201 Contents loose 202 Separator or filler missing 203 204 205 Heat sealer incomple
47、te, loose, or distorted Cut or damaged through impregnated box Marking missing, incorrect, or illegible 4.6.6 Box, Ammunition, Packing, Drawing 8797441. Critical None defined Major None defined Minor 201 Contents loose 202 203 Contents of box exposed 204 Box damaged 205 206 Number of cartons incorre
48、ct Strapping missing, loose, broken, or improperly assembled Marking missing, incorrect, or illegible 4.6.7 Box, Fiberboard (Outer), Alternative, Drawing 9225380. Critical None defined Major None defined Minor 201 Contents loose 202 Box broken or damaged 203 204 205 Tape incomplete Number of units c
49、ontained incorrect Marking missing, incorrect, or illegible 4.7 Test methods and procedures. Manual/Visual Visual Visual Visual Visual ManualNisual Visual Visual Visual Visual Visual Manual Visual Visual Visual Visual 4.7.1 Primer x-ray. Prior to assembly into the cartridge, the primer shall be radiographically examined in accordance with MIL-STD-453. Each primer shall be x-rayed on boards or trays with the cup side perpendicular to the rays. The x-ray negatives shall be identified by item nomenclature and by lot number. Primers are to be left m
