1、-. P t MIL-C-5655 33 m 7797706 0365603 3 m MIL-C-85655(AS) 22 July 1985 MILITARY SPECIFICATION CARTRIDGE, 25 MM, HIGH EXPLOSIVE INCENDIARY-TRACER MARK 210 MOD O This spec Eication is approved for use by the Naval Air Systems Command, Department of the Navy, and is available for use by all Department
2、s and Agencies of the Department of Defense. 1. SCOPE. 1.1 Scope. This specification establishes the requirements for the test and acceptance of the percussion primed Cartridge, 25 millimeter (mm), high explosive incendiary-tracer MARK 210 MOD O, herein referred to as the cartridge. 2. APPLICABLE DO
3、CUMENTS. 2.1 Government documents. 2.1.1 Specifications, and standards. Unless otherwise specified, the following specifications and standards of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of th
4、is specification to the extent specified herein. STANDARDS MILITARY MIL-STD-105 Sampling Procedures and Tables for Inspection by Attributes. Beneficial comments (recommendations, additions, deletions) and any per- tinent data which may be of use in improving this document should be addressed to: Com
5、manding Officer, Naval Air Engineering Center, Systems Engineering and Standardization Department (SESD), Code 93, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document, or by let ter. “DISTRIBUTION STATEME
6、NT - A. Approved for public release; distribution is unlimited.“ c THIS DOCUMENT CONTAINS -a-o PAGES Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85b55 13 = 7777706 0365602 5 -_ MIL-STD-109 MIL-STD-129 MIL-STD-644 MIL-STD-651 MIL-STD-1167 MI
7、L-STD-1168 MIL-STD-1235 Quality Assurance Terms and Definitions. Marking for Shipment and Storage. Visual Inspection Standards and Inspection Procedures for Inspection of Packaging, Packing and Marking of Small Arms Ammunition. Visual Inspection Standards for 20 mm Ammunition and Components. Ammunit
8、ion Data Cards. Lot Numbering of Ammunition. Single and Multilevel Continuous Sampling Procedures and Tables for Inspection by Attributes. 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this specificat
9、ion to the extent specified herein. DRAWINGS Naval Air Systems Command (Code Ident 30003) 139 7AS69 O Cartridge, 25 mm, HEI-T, MK 210 MOD O. PUBLICATIONS Code of Federal Regulations (CFR) 49 CFR 100-199 Hazardous Materials Regulations, Department of Transportation. (Applications for copies should be
10、 addressed to the Superintendent of Documents, Government Printing Office, Washington, DC 20402.) REPORTS U.S. Army Armament Research and Development Command (Code Ident 19200) . AS12013566 25 mm Ammunition Ballistic Test Met hods. 2 Provided by IHSNot for ResaleNo reproduction or networking permitt
11、ed without license from IHS-,-,-MIL-C-85655 13 9999706 0365603 7 m AS12013667 Special Ammunition Requirements. (Copies of standards, drawings, and publications required by manufac- turers in connection with specific acquisition functions should be obtained from the contracting activity or as directe
12、d by the contracting officer.) 2.1.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS. 3.1 General. The cartridge shall comply with Drawing 1397AS690 and other
13、 requirements specified herein. 3.2 Manufacturing process. All parts and assemblies shall be manufac- tured by a process approved by the contracting activity. 3.3 First article sample. Unless otherwise specified in the contract or purchase order (see 6.2.11, a sample shall be subjected to a first ar
14、ticle inspection. 3.4 Projectile extraction. The force required to extract the projectile from the case shall be not less than 8,900 newtons (N) and not greater than 18,200 N. 3.5 Projectile torque. The projectile shall not rotate in the case when subjected to a minimum torque of 3.4 newton meters (
15、Nm). 3.6 Velocity. The average muzzle velocity of the sample cartridges, con- ditioned at 18 to 24 degrees Celsius (OC), shall be 1,100 125 meters per second (mps). The sample standard deviation shall be not greater than 13 mps. 3.7 Pressure. The average peak chamber pressure of the sample cartridge
16、s conditioned at 18“ to 24“C, plus 0.72 standard deviation of peak chamber pressure, shall be not greater than 402 megapascals (MPa). The average peak chamber pressure of the cartridges, when functioning at any individual temperature from -54 to 62“C, plus five standard deviations of peak chamber pr
17、essure, shall be not greater than 496 MPa. Pressure shall be measured with a piezoelectric type pressure transucer or equivalent. 3.8 Waterproofness. The average velocity (wet) of projectiles of the sample cartridges, conditioned at 18 to 24“C, shall not vary from the average velocity (dry) by more
18、than 30.5 mps. cartridges shall be not greater than 6.0 milliseconds (ms). The action time of the (wet) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-85655 13 777770b 0365604 7 MIL-C-85655(AS) 3.9 Accuracy. The standard deviation of impact
19、s in both the horizontal and the vertical directions of the sample cartridge projectiles shall be not greater than 0.77 mils when the sample cartridges are conditioned at 18 to 24C. 3.10 Action time. The action time of the cartridge shall be not greater than 6.0 ms at any cartridge temperature from
20、-54 to 62OC. 3.11 Projectile function. The projectile shall function upon impact with a target of 0.040-inch nominal thickness aluminum plate 2024 T3 at O k5 degrees obliquity, at a distance of 180 to 220 meters. 3.12 Projectile trace. The projectile shall exhibit a visible trace for a minimum of 3.
21、2 seconds when viewed from the gun muzzle against a dark background. 3.13 Function and casualty. The cartridge shall function at 20 +lOC without firing defects and casualties. 3.14 Workmanship. All parts and assemblies shall be fabricated, loaded, and assembled in a thorough workmanlike manner. They
22、 shall be free of burrs, sharp edges, cracks, scratches, dents, folds, wrinkles, buckles, dirt, grease, oil, rust and other foreign matter. The cleaning method used shall not be injurious to any parts, nor shall the parts be contaminated by the cleaning agents. Exterior surface coatings shall be con
23、tinuous. Light scratches shall not exceed the defect criteria defined in 6.4.2. All required marking and stamping shall be neat and clearly defined. 4. QUALITY ASSURANCE PROVISIONS. 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order (see 6.2.1), the contr
24、actor is responsible for the performance of all inspection requirements as specified herein, and the contractor may use his own or any facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to p
25、erform any of the inspec- tions set forth in the specification where such inspections are deemed neces- sary to assure supplies and services conform to specified requirements. 4.2 Classification of inspections. The inspection requirements speci- fied herein are classified as follows: a. First articl
26、e inspection (see 4.4). b. Quality conformance inspection (see 4.5). 4.3 Terms and definitions. Quality assurance terms and definitions shall be in accordance with MIL-STD-109. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85655 13 7777706
27、0365605 O m 4.4 First article sample inspection. 4.4.1 First article sample. Prior to regular production, a sample shall be submitted in accordance with contract requirements and shall consist of 914 cartridges, 125 primed cases, and 125 projectiles (see 6.3)?. The sample shall be manufactured using
28、 equipment, processes, and procedures that are similar to those used in regular production. Identification shall be in accoidance with MIL-STD-1168. 4.4.1.1 Examination and test. The tests of Table I shall be performed on the first article sample in accordance with the test methods prescribed in 4.6
29、. Except as otherwise specified herein, the tests shall be conducted with samples at 20 +lOC. Approval shall be based upon eximination of the complete sample for visual and dimensional characteristics listed in 4.5.3 and the tests of Table I. The combining of tests shall be permitted provided that t
30、he test results are not affected by this procedure. TABLE I. First article inspection. Examination or test Projectile, assembly, 25 mm, HEI Examination for defects Case, cartridge, primed Examination for defects Cartridge, 25 mm, PGU-22/ (Drawing 1397AS290) Examination for defects Projectile extract
31、ion Propellant contamination NO. Of sample units 125 125 125 31 31 32- 32- Acc/re j ACC - O Rej - 1 ACC - O Rej - 1 ACC - O Rej - 1 ACC - 1 Rej - 2 ACC - O Rej - 1 Requirement paragraph 3.1 3.1 3.1 3.4 3.14 Paragraph reference/ inspection method 4.5.3.1 4.5.3.2 4.5.3.3 4.6.1 4.6.2 5 Provided by IHSN
32、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-85655 23 9997906 036560b 2 W I TABLE I. First article inspection. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85655 13 = 9999906 0365607 4 TABLE I. F
33、irst article inspection. (Continued). -Ammunition shall be conditioned at 18 to 24C. LThe sample shall be rejected if malfunctions or firing casualties in -Quantity combined for tests. -Forty-five cartridges each shall be conditioned at -54“ f3“C, +21“ f3“C, excess of the “ACC“ number on Table III o
34、ccur +62“ f3“C. 4.4.1.2 First article sample rejection. Failure of the sample to comply with the requirements of the drawings and specifications specified herein shall result in sample disapproval. Determination as to acceptability of any first article sample shall be based upon results of initial t
35、est only and no second tests shall be permitted on that first article. The acceptancelrejection criteria for the first article sample shall be as specified in Table I. All first article units shall be inspected 100 per- cent for critical defects. 4.5 Quality conformance inspection. 4.5.1 Submission
36、of product. The product shall be submitted in accord- ance with MIL-STD-105 or MIL-STD-1235, as applicable. 4.5.1.1 Production lot. The production lot shall be not less than 25,000 cartridges and not greater than 200,000 cartridges. A lot shall consist of: a. Cartridges loaded by one manufacturer, i
37、n one unchanged pro- cess, in accordance with referenced drawings. b. Like parts and assemblies (cases; primers; projectiles; fuzes; tracer and ignition systems) having one manufacturers symbol and one interfix number. c. Propellant from one lot. 4.5.1.2 Lot identification. Each cartridge and each p
38、acked ammunition lot shall be identified in accordance with applicable drawings and M.1L-STD-1168. Each packed lot shall further be identified by a national stock number assigned by the contracting activity. .4.5;2 Quality conformance inspection sampling. A 100-percent examination shall he performed
39、 by the contractor for all critical defects. for major and minor defects shall be performed as specified herein. part and each assembly found to be defective shall be rejected and removed from the lot for disposition. Examination Each 7 Provided by IHSNot for ResaleNo reproduction or networking perm
40、itted without license from IHS-,-,-_- MIL-C-85655 13 7779706 0365608 6 4.5.2.1 Sampling and acceptance criteria. The sampling plans and proce- dures shall be in accordance with MIL-STD-105 or MIL-STD-1235 or approved contractor sampling plans. To determine product acceptability, major or minor defec
41、ts as listed herein may be considered collectively on a class basis or they may be considered individually. However, where major defects are considered collectively on a class basis, the acceptance number for any individual defect of the class shall be limited by the assigned Acceptable Quality Leve
42、l (AQL) for individual defect associated with the class (see 4.5.2.1.1). In addition, where three or less defects appear in a classi- fication or where MIL-STD-1235 is used, sampling plans applicable to a class shall not be used for major defects (see 6.5). 4.5.2.1.1 AQLs. The following AQLs are ass
43、igned to major and minor defects : a. Individuals : AQL (%) Major: . 0.25 Minor: . 0.40 b. Class basis: Major: . 1.50 Minor: . 1.50 c. Individual defects associated with the class basis: Major: . 0.40 4.5.2.2 Machine inspection. Inspection of critical, major and minor characteristics shall be perfor
44、med 100 percent by a qualified and periodi- cally verified inspection probe in lieu of sampling the product utilizing the sampling procedures defined in footnote 2 of 4.5.3. 4.5.3 Classification of defects.L The classification of defects shall be as follows: 4.5.3.1 Proiectile assembly. 25 mm HEI-T.
45、 Categories and defects Method of . inspection AQL (%) CRITICAL : HEI charge depth . Gage 1002 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-85655 13 7777906 0365609 8 Method of inspection AQL (%) Categories and defects MAJOR : None defined.
46、MINOR : 201. Workmanship (see 3.13) Visual 4.5.3.2 Case, cartridge, primed. Method of Categories and defects inspection CRITICAL : 1. Ignition system is properly Visual or gage ass embled 2. Primer above flush . MAJOR : 101. Depth of primer seating oversize . MINOR : 201. Waterproof sealant missing
47、around primer 202. Primer crimp missing . 203. Workmanship (see 3.13) 4.5.3.3 Cartridge (see Drawing 1397AS690). Categories and defects CRITICAL : 1. Split or perforated case . 2. Crack or split in projectile . 3. Fuze nose cap missing 4. Crimp missing (case/projectile) . . Gage Gage Visual Visual V
48、isual 1 e5 AQL (%) lo&/ lo&/ 0.25 0.40 0.40 1.5 Method of inspection AQL (%) Visual Visual Visual Visual 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ MIL-C-5655 33 U 9799906 0365630 4 U MIL-C-85655cAS) Cateeories and defects Method of inspecti
49、on AQL (%) 5. Low propellant charge . . . . . . Gage 10021 MAJOR: 0.25 3/ 101. Fuze loose . . . . . . . . . . . . . . Gage- 102. Overall length, max . . . . . . . i . Gage iodl Categories and defects Method of inspection AQL (%) 103. Improper or incomplete crimp . . . . . Vi sua1 0.25 (case/projectile) 104. Profile and alignment, max . . . . . . Gage 10021 105. Crack, split
