1、MIL-C-50243 (MU)/ 4 August 1971 (See 6.11) MILITARY SPECIFICATION CARTRIDGE, 40MM, HE, M383 LOADING, ASSEMBLING AND PACKING 1. SCOPE 1.1 This specifications covers the loading, assembling and packing for one type of cartridge designated as Cartridge, 40MM, HE, M383. . 2. APPLICABLF: DOCUMENTS SPECIF
2、ICATIONS 1Ct LI TARY MIL-P-116 MIL-A-2550 MIL-1-4 5607 MIL-P-60942 STANDARDS MILITARY 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specifie,d herein: Preservation, Method of Ammunition and S
3、pecial Weapons, General Specification for - Inspection Equipment, Acquisition, Maintenance and Disposition of Primer Percussion for 4OMM - - . hurtunition -: 1310 P Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-50213 13 999990b 0325808 L . MI
4、L-C-50243 (MU) MIL-STD-109 - Quality Assurance Terms and Definitions MIL-STD-331 - Fuze and Fuze Components, Environmental and Performance Tests for MIL-STD-1168 - Lot Number of Ammunition MIL-STD-1235 - Single and Multilevel Continuous Sampling Procedures and Tables for Inspection by Attributes DRA
5、WINGS US ARMY MUNITIONS COMMAND 9241371 - Cartridge, OMM, HE, M383 .PUBLICATIONS ARMY ET-9241371 - Equipment Tabulation (Copies of specifications, standards, drawings and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activi
6、ty or as directed by the Contracting Officer.) Other publications.-The following documents form a part of thls specification to the extent specified herein. Un- less otherwise indicated, the issue in effect on the date of invitation for bids or request for proposal shall apply. 2.2 CODE OF FEDERAL R
7、EGULATIONS Title 49 Transportation, Parts 0-190 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - MIL-C-502q3 13 999790b 0325809 3 MIL-C-50243 (MU) (The Code of Federal Regulations is available from the Superintendent of Documents, U.S. Government
8、 Printing Office, Washington, D.C. 20402. Orders should specify 49 CFR 0-190 (latest revision) . 1 3. REQUIREMENTS 3.1 Material.-Materials shall be in accordance with the applicable drawings and specifications. 3.2 Cartridge.-The cartridge shall comply with all requirements specified on Drawing (dwg
9、.) 9241371, all associated drawings and with all requirements specified in applicable specifications. 3.3 Air pressure.-The cartridge shall withstand an air pressure of three (3) pounds per square inch (psi) for five (5) seconds, minimum (min.) without a drop in pressure when tested as specified in
10、4.4.12. 3.4 X-Ray examination of fuze assemblies prior to assembling to body assembly.-The fuze assembly shall be x-rayed for improper- ly assembled, missing parts, armed or partially armed (as evidenced by the detonator moving aq degree from the safe position or pre- sence of the setback pin seated
11、 against bottom surface of the rotor plate (Dwg. 8876197) counterbore) when tested as specified in 4.4.8. 3.5 X-ray examination of ballistic samples.-Prior to for- warding the cartridges to the proving ground for ballistic test- ing, as specified in 4.3.3.15 and 4.3.3.17, they shall be subjected to
12、x-ray examination when tested as specified in 4.4.7. 3.6 Transportation Vibration.-The.cartridge shall be safe and operable after test specified in 4.4.9. 3.7 Functioning 3.7.1 Cartrid e.-The cartridge shall function satisfactorily and the project1 _rie e shall have a mean velocity of 795 + 20.0 fee
13、t per second (fps) and a standard deviation not exceeding 15.0 fps when tested as specified in 4.4.13. The action time of the cart- ridge when tested as specified in 4.4.13 shall be 4.0 milliseconds, maximum. 3 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
14、om IHS-,-,-MIL-C-5 02 4 3 (MU) 3.7.2 Safet .-There shall be no premature burst (See 6.7) or evidence 7.-y- t ereof in any of the test firings when teste6 as specified in 4.4.13. 3.8 Workmanship.-All parts and assemblies shall be fab- ricated, loaded and assembled in a thorouqh, workmanlike manner. T
15、hey shall be free of burrs, sharp edges,-cracks, dirt, grease, rust and other foreign matte:. The cleaning method used shall not be injurious to any part, nor shall the parts be contaminated by the cleaning agents. Exterior surface coat.ings shall be continuous except for a few light scratches not e
16、xposing base material. All required markings shall be neat and sharply defined. 3.9 Submission of results of contractor-conducted examinations and tests.-The contractor shall forward copies of the results of any of this examinations or tests to the design- ated address as required by the contract, t
17、he specification, or as requested by the Contracting Officer. (see 6.10) 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.-Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein
18、. Except as otherwise specified in the contract or order, the supplier 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 inspections set f
19、orth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Reference shall be made to MIL-STD-109 to define terms used . herein. The provisions of MIL-A-2550 shall apply. 4.1.1 Submssion of product.-At the time the comple
20、ted lot of items deliverable under the contract is submitted to the Gaverment for acceptance, the contractor shall supply the following information accompanied by a certificate which attests that the information provided is correct and applicable to the product being submitted: assurance provisions
21、specified in this specification. a. A statement that the lot complies with ali the quality 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-50243 33 777770b 0325833 L MIL-C-50243 (KU) b, Drawing and specification number and date, together wit
22、h identification and date of changes thereto. C. A statement that all material purchased by the contractor meets requirements, when such material is controlled by Government or commercial specifications referenced in any of the contractual dacuments, and that certificates of conformance are on file
23、and available for review. d. Number of items in the lot. e. Date submitted. . The certificate shall be signed by a responsible agent of the certifying organization. The initial certificate submitted shall be substantiated by evidence of the agents authority to bind his principal. be required with su
24、bsequent certificates unless, during the course of the contract, this authority is vested in another agent of the certifying organization. Substantiation of the agents authority will not 4.2 First article inspection.-Not applicable. 4.3 Inspection provisions 4.3.1 Lot formation.-The term inspection
25、lot“ as used in this specification is defined as an essentially homogeneous collection of units of product from which a representative sample is drawn and inspected to determine conformance with applicable requirements. The sample selected shall represent only that quantity of units from whcih the s
26、ample was drawn and shall not be construed to represent any prior or subsequent quantities presented for inspection. Homogeneity shall be con- sidered to exist provided the inspection lot has been produced by one manufacturer, in one unchanged process, in accordance with the same drawing, same drawi
27、ng revision, same specification and same specification revision and complies.with the provisions for submission of product as specified in MIL-STD-105. Changes to process, specification, or drawing not affecting safety, performance, interchangeability, or storage, as determined by the Government, sh
28、all not be deemed to alter the homogeneity of an inspection lot. All material submitted for inspection in accordance with this specification shall comply with the homo- geneity criteria specified herein regardless of the type of sampling procedure which is being applied to determine confor- mance wi
29、th requirements. Lot -numbering, as required, shall be in accordance with MIL-STD-1168. Each inspection lot shall contain : 5 i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-502q3 33 M 777790b 0325832 3 _._ =- - MIL-C-SO243 (MU) a. Cartridge
30、case assembly metal parts from one lot in- b. Metal parts from one lot interfix number from one C. Fuzes from no more than two (2) consecutively produced d. Primers from one lot number from one manufacturer. e. Propellant from not more than one (1) lot number f, Composition A5 from one lot interfix
31、number from one g. Cartridges in less than full belt quantities shall be terfix number from one manufacturer. manufacturer. serial lots from one manufacturer. from one manufacturer. manufacturer. handled in the following manner: (1) If remaining quantity exceeds 25 rounds, use rounds (2) If remainin
32、g quantity is less than 25 rounds, in- (3) Packing box and data cards shall be annotated as from next lot to complete belt. clude rounds in next lot produced. to the mixture. 4.3.2 Examination,-The examinations listed in the follow- ing subparagraphs shall be performed on inspection lots (See 4.3.1)
33、 of the components or assemblies designated in the applicable para- graph headings. Inspection for critical defects (and major defects, when so specified) shall be 100 percent. Sampling plans for major and minor defects shall be in accordance with MIL-STD-105 except that continuous sampling plans in
34、 accordance with MIL-STD-1235 may be used if approved by the Government. Instead of applying the AQLs designated herein to the groups of major and minor defects lsted, the contractor may elect to apply AQLs to individual de- fects using an AQL of 0.40 percent for each major defect and an AQL of 0.65
35、 percent for each minor defect. When this method is elected, it shall be applied to all of the major and minor defects listed in the applicable subparagraph of this section, except where 100 percent inspection is specified, and be documented as part of the contractors inspection system. performance
36、of the inspections listed shall be in accordance with 4.3.4. Equipment necessary for the 4.3.2.1 Cartridge case assembly, prior to loading (see dwg. 8886327 coverinq a detail of dwg. 9241371) i 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-
37、502Y3 33 W 9777706 0325833 5 W MIL-C-50243 (MU) Categories Defects Critical: None defined Major: None defined Metho of Code No. Inspection (See 6.2) Minor: AQL . O. 65 Percent Visual O1001 201. Closing cup missing 4.3.2.2 Cartridge case assembly, prior to insertincr hac0 - Categories Defects Method
38、of Code No. Critical : Inspection 1. Spilled powder from cartridge 2, Propellant charge weight obviously incorrect (see case Visual 02001 6.9) Visual 02002 (see- 6.9) Visual 02003 Major: 100% Inspection 101. Propellant charge weight . obviously incorrect Minor: None defined 4.3.2.3 Cartridge case as
39、sembly (see dwg. 8886327 covering a detail of dwg. 9241371) Categories Defects Method of Code No. Critical : Inspection 1. Primer above flush with base Plug Gage 03001 101. Base plug above flush Gage 03002 102. Depth to base plug, max. Gage 03003 103. Depth to primer, max from base plug Gage 03004 1
40、04. Primer damaged Visual 03005 105. Excessive sealing compound on exterior surface of primer Visual 03006 Major : AQL 1.00 Percent 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.MIL-C-502q3 13 m 7777706 0325834 7 m . MIL-C-5024 3 (MU) Minor : AQ
41、L 0.65 Percent 201. Evidence of poor workmanship (see 3.8) Visual 03007 4.3.2.4 Body loading assembly (see dwg. 9241370 coverinq a detail of Dwg. 9241373) Categories Defects Critical: None defined Method of Code No. inspection Major: AQL 0.40 Percent 101. Depth of charge Gage 102. Diameter of rotati
42、ng bands Gage 04001 04002 Minor : AQL 1.50 Percent 201. Threads damaged Visual 04003 202. Evidence of poor workmanship. (See 3.8) Visual 04004 203. Charge parallel to rim of body Gage 04005 4.3-2.5 Projectile, prior to crimping cartridge case assembly (see dwg. 9241371) Categories Defects Critical:
43、None defined Method of Inspection Code No. Major: None defined Minor : AQL 0.65 Percent 201. O-ring (packing) missing in groove Visual 05001 4.3.2.6 Cartridge (see dwq. 9241371) Categories Defects Critical: None defined Method of Code No. Inspection Major: AQL 0.65 Percent 101. Gap, min Gage 06001 1
44、03. Gap, rear of rotating bands Gage 06003 102. O-ring exposed Visual 06002 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-50243 13 7779706 0325835 7 m MIL-C-50243 (MU). Minor : AQL 1.50 Percent 201, Excessive adhesive on exterior 203. Evlde
45、nce of poor workmanship surfaces Visual G6GG4 (See 3.8) Visual 06006 202. Marking missing Visual 06005 4.3.2.7 Linked ammunition prior to packing (see dwg. 8886505) Categories Defects % Method of Code No. Critical : Inspection 1. Link improper (anyone of the six (6) tabs of link not in groove; link
46、inverted; link damaged; link distorted) Visual 07001 Major: None defined Minor: None defined 4.3.2.8 Unsealed fiber box (see dwg, 9251996) Categories Defects Method of Code No. Critical: None defined Inspection Major : AQL 0.65 Percent 101. Cartridge inverted Visual 08001 102. Incorrect number of ca
47、rtridges Visual 08002 103. Fillers missing Visual 08003 104. Supports missing Visual 08004 Minor: None defined 4.3.2.9 Sealed fiber box, prior to sealing bag (see dwg, 9251996) Categories Defects Critical: None defined Method of Code No. Inspection Major : AQL 0.40 Percent 101. Container damaged Vis
48、ual O9001 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-50243 13 9q9790b 0325Lb O : MIL-C-50243 (MU) 102. Corners not blunted Visual. Minor : AQL 1.00 Percent 201. Contents loose Manual 202. Label missing or unidentifiable Visual 09002 O900
49、3 09004 4.3 02 -10 Unsealed wooden packing box (see dwg. 9251995) Categories Defects Critical: None defined Method of Code No. Inspection Major: AQL 0.65 Percent Marking o bag misleading or 101. unidentifiable Visual 10001 102. Bag torn or perforated Visual 10002 103. Bag improperly sealed Visual 10003 Minor: None defined 4.3.2.11 Sealed wooden packing box (see dwg. 9251995) Categor
