1、I MIL-C-5625 13 m 9999906 0365q32 2 m MIL-C-85625 (AS) 11 August i983 M1ZfTARY.SPECIFICATION CARTRIDGE, 25 mm, HIGH EXPLOSIVE INCENDIARY SEW-DESTRUCT, PGU-ZS/U This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is available for use by all Departments
2、 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 (nun), PGU-22/U High Explosive Incendiary (HEI) Self-Destruct, herein referred to as the Cartridge. 2. APPLIC
3、ABLE DOCUMENTS. 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless otherwise speci- fied, the following specifications and standards of the issue listed in that issue of the Department of Defense Index of Specifications and Stan- dards (DODISC) specified in the solicita
4、tion, form a part of this speei- fication 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 pertinent data which may be of use in improving this document sho
5、uld be addressed to: Commanding Officer, Naval Air Engineering Center, Engineering Specifications and Standards Department (ESSD), Code 93, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improvement Proposal (DD Porm 1426) appearing at the end of this document, or by lette
6、r. .FSC 1305 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-85b25 13 M 9799906 0365493 4 MIL-STD-109 MIL-STD-129 MIL-STD-644 MIL-STD-651 Quality Assurance Terms and Definitions. Marking for Shipment and Storage. Visual Inspection Standards a
7、nd Inspec- tion Procedures for Inspection of Pack- aging, Packing and Marking of Small Arms Ammunition. Visual Inspection Standards for 20 mm Ammunition and Components. MIL-STD-1167 Ammunition Data Cards. MIL-STD-1168 Lot Numbering of Ammunition. MIL-STD-1235 Single and Multilevel Continuous Samplin
8、g 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 02 this specification to the extent specified herein. DRAWINGS Naval Air Systems Command (Code fdent 30
9、003) 139 7AS29O Cartridge, 25 mm, HEI, PGU-22/U. PUBLICATIONS Code of Federal Regulations (CFR) 49 CFR 100-199 Hazardous Materials Regulations, Department of Transportation. (Applications for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, DC 20
10、402.) REPORTS U.S. Army Armament Research and Development Command (Code Ident 19200) AS12013566 25 mm Aminunition Ballistic Test Methods. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85625 13 W 7999906 0365494 b AS12003667 MIL-C-85625 (AS)
11、 Special Ammunition Requirements. (Copies of specifcations, standards, and drawings required by manu- facturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer. ) 2.2 Order of precedence. In the event 6f a c
12、onflict between the text of this specifcation and the references cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS. 3.1 General. The cartridge shall comply with Drawing 1397AS290 and other requirelents specified herein. 3.2 Manufacturing process. All parts and assem
13、blies shall be manu- factured by a process approved by the procuring activity, and no devia- tions from that process shall be made without his prior approval (see 6.4.1). 3.3 First article sample, This specification makes provisions for a first article sample, Unless otherwise specified by the contr
14、acting officer, a first article sample is required (see 4.4 and 6.3). 3.4 Projectile extraction, The force required to extract the pro- jectile from the case shall be not less than 8,000 newtons (N) and not greater than 16,900 N as specified on Drawing 1397AS290 (see 4.6.1). 3.5 Projectile torque. T
15、he projectile shall not rotate in the cace when subjected to a minimum torque of 3.4 newton meters (Nm) (see 4.6.3). 3.6 Velocity. The average muzzle velocity of the sample cartridges, conditioned at 18 to 24 degrees Celsius (OC), shal1 be 1,100 95 meters per second mps). The sample standard deviati
16、on shall not exceed 15 mps (see 4.6.4). 3.7 Pressure, The average, plus 0.72 standar deviation of peak chamber pressure, shall not exceed 402 megapascals ( primers; projectiles; fuzes; tracer and ignition systems) having one manufacturers symbol and one interfix number. c. Propellant from one lot. 7
17、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85625 13 = 7979706 0365479 5 MIL-C-85625 (AS) 4.5.1.2 Lot identification, Each cartridge and each packed ammuni- tion lot shall be identified in accordance with applicable drawings and MIL-STD-12
18、68. Each packed lot shall further be identified by a national stock number assigned by the procuring activity. 4.5.2 Quality conformance inspection sampling. One hundred percent examination shall be performed by the contractor for all critical defects. Examination for major and minor defects shall b
19、e performed as specified herein. Each part and each assembly found to be defective shall be rejected and removed from the lot for disposition (see 6.2.1). 4.5.2.1 Sampling and acceptance criteria. The sampling plans and pro- cedures shall be in accordance with MIL-STD-105 or MIL-STD-1235 or ap- prov
20、ed contractor sampling plans. To determine product acceptability, major or minor defects 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 accep- tance number for any
21、 individual defect of the class shall be limited by the assigned Acceptable Quality Level (AQL) for individual defect asso- ciated with the class (see 4,5.2.1.1c). In addition, where three or less defects appear in a classification or where MIL-STD-1235 is used, sampling plans applicable to a class
22、shall not be used for major defects (see 6.5). 4.5.2.1.1 AQLs. - The following AQLs are assigned to major and minor defects : a. Individuals: AQL (%I 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 Machin
23、e inspection. Subject to procuring activity approval, inspection of critical, major and minor characteristics may be performed 100 percent by a qualified and periodically verified inspection probe in lieu of sampling the product utilizing the sampling procedures defined in 4.5.3. Provided by IHSNot
24、for ResaleNo reproduction or networking permitted without license from IHS-,-,-i1 MIL-C-85b25 13 = 777770b 0365500 4.5.3 Classification of defects.- The classification of defects shall be as follows: 4.5.3.1 Projectile Assembly, 25 mm mi. Method of Categories and Defects inspection CRITICAL : HEI Ch
25、arge Depth . Gage MAJOR : None defined. MINOR: 201. Workmanship (see 3.13) Visual 4.5.3.2 Case, cartridge, primed. Categories and Defects CRITICAL: Method of inspection 1. Ignition system is properly Visual or Gage assembled 2, Primer above flush Gage MAJOR: 101. Depth of primer seating oversize . G
26、age 102, Cocked, loose, missing or . Manual/Visual inverted primer MINOR: 201. Sealant missing around primer Visual 202. Primer crimp missing . Visual 203. Workmanship (see 3.13) Visual AQL (%I 2/ 100- 1.5 AQL (%I 2/ 100- 2/ 100- 0.25 0.25 0.40 0.40 1.5 9 Provided by IHSNot for ResaleNo reproduction
27、 or networking permitted without license from IHS-,-,-_ MIL-C-5625 33 W 9999906 0365503 T W 4.5.3.3 Cartridge (see Drawing 1397AS290). Method of Categories and Defects inspection AQL (%I CRITICAL : 2/ 1. Split or perforated case . Visual 100- 2/ 2. Cyack or split in projectile . Visual 100- 2/ 3. Fu
28、ze nose cap missing Visual 100- 2/ 4. Crimp missing (case/projectiie) . Visual 100- MAJOR: 101. Fuze loose Gage- 4/ 0.25 2/ 102. Overall length, max . Gage 100- 103. Improper or incomplete crimp . Visual 0.25 (case/pro jectile) 2/ 104. Profile and alignment, max Gage 100- 105. Crack, split or dent i
29、n fuze . Visual . 0.25 nose cap MINOR : 201. Marking incorrect, incomplete Visual 1.5 illegible or missing 202. Scratch, dent, buckle, bulge, Visual 0.40 wrinkle or fold in case 203. Incorrect type cartridge or . Visual 0.40 components 204. Gap between fuze and projectile body . Visual 0.40 205. Wor
30、kmanship (see 3.13) Visual 1.5 LMIL-STD-651 shall apply in de ining and evaluating cartridge visual defects. ?If machine inspection is not utilized, inspection verification of prior 100% inspections shall be performed in accordance with MIL- STD-105, minimum size = 315 with zero defects allowed. 10
31、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-5625 13 W 7977706 0365502 1 MIL-C-85625 (AS) ZfA dead weight load not greater than 267 N may be used to insert the cartridge into the gage. ?The cartridge shall be classed defective, when the fuze
32、 turns with respect to the projectile body upon application of the required torque in a counterclockwise direction. 4.5.4 Test. The tests of Table II shall be performed on each cart- ridge lot in accordance with the test methods in 4.6. Unless otherwise indicated herein, tests shall be conducted wit
33、h samples at 20 +lOC. Sample size and acceptance criteria for eacn test shall be as specified herein. Only cartridges having met the visual and dimensional require- ments and having been selected in such a manner that the sample is repre- sentative of the entire lot shall be used in the tests. The s
34、elected cartridges shall be thoroughly mixed before being divided into samples for the various tests. The combining of tests is permitted provided that the test results are not affected by this procedure. - 4.5.4.1 Firing defects and casualties. Firing defects and associated criteria shall be as spe
35、cified in Table III. see AS12013566. For the defect definitions, 4.5.4.2 Unlisted firing defects, The lot shal1 be suspended and referred to the procuring activity for disposition, if a malfunction or casualty not covered by this specification occurring in any firing test, indicates that the product
36、 is unsuited for the purpose intended. 4.5.5 Packing, packaging and marking inspection. MIL-STD-644 shall be used for the inspection of packaging, packing and marking as applicable to the drawing. 4.6 Test methods and procedures. 4.6.1 Projectile extraction. The method of test shall be as prescribed
37、 in AS12013566. 4.6.2 Propellant contamination. The propellant from each of the cart- ridges tested for projectile extraction shall be examined visually for contamination, as prescribed in AS12013566. 4.6.3 Projectile torque. Each cartridge of the test sample shall be marked with a light scratch ext
38、ending axially across the rotating band onto the case neck. Torque, to the specified requirement, shall be applied slowly to the projectile. Movement of the projectile with respect to the cartridge case detectable by misalignment in the scratch mark, shall be recorded. 11 Provided by IHSNot for Resa
39、leNo reproduction or networking permitted without license from IHS-,-,- _ - MIL-C-85625 13 m 7777906 03b5503 3 m MIL-C-85625(AS) TABLE II. Quality conformance inspection. i/ Test- 2/ Projectile extraction- 31 Propellant contamination- Projectile torque- 41 Ve lo city- s/, g/ Pressure- 61, g/ Accurac
40、y- 8/ Waterproofness- 71 91, g1 Action time- P r o j e c t i 1 e function- 101 Impact non-function Impact function Target sensitivity function 1 i/ 111 Function and casualty- Function and casualty- AV-8/25 mm Gun System Sample size prod. lot 20 20 20 20 20 20 40 20 20 20 20 150 150 Reqmt para. 3.4 3
41、.13 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.11.1 3.11.2 3.11.3 3.12 3.12 Test para. 4.6.1 4.6.2 4.6.3 4.6.4 4.6.4 4.6.4 4.6.5 4.6.6 4.6.7 4.6.8 4.6.9 Combined - ass Fail 2 (min: 4 (max: 1 2 1 Retest 20 . 20 40 40 40 80 . 500 I LThe lot shall be rejected if in any firing test, one or more of the following ma
42、lfunctions or the casualties of Table III occur: a. Premature functioning of the projectile (see 6.4.3). b. Projectile remaining in bore. c. Metal parts separation, except rotating band separation . (see NOTE - 4/ of Table III). Accept or reject criteria for firing casualties are shown in Table III.
43、 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 MIL-C-85625 13 = 7977706 0365509 5 = MIL-C-85625(AS) TABLE II. Quality conformance inspection. (Continued.) An additional shot shall be fired except as otherwise specified herein, and in the funct
44、ion and casualty test where the occurrence of a firing defect listed ia Table III prevents the obtaining of a reliable result for the characteristics being tested. Zprojectiie extraction. a. Failure of 2 or more sample cartridges to comply with minimum re- quirements shall cause rejection of the lot
45、. If one cartridge of the sample fails to compy with the minimum requirement, a second sample of 20 cartridges shall be tested. if two OK more cartridges of the combined samples fail to comply with the minimum requirement. The lot shall be rejected be Failure of four or more cartridges to comply wit
46、h the maximum requirement shall cause rejection of the lot. If more than one, but less than four cartridges fail to comply with the maximum re- quirement, a second sample of 20 cartridges shall be tested. The lot shall be rejected if fi& or more cartridges of the combined samples fail to comply with
47、 the maximum requirement. :Propellant contamination. The presence of foreign matter in the pro- pellant of any of the test cartridges shall cause rejection of the lot (see 3.13). Failure of two or more of the sample cartridges to comply with the specified torque requirement shall cause rejection of
48、the lot. If one cartridge of the sample fails to comply, a second sample of 20 cartridges shall be tested. The lot shall be rejected if two or more cartridges of the combined sample fail to comply with the applicable requirements. ZVelocity. If the sample fails to comply with either or both require-
49、 ments, a second sample of 40 cartridges shall be tested for the fail- ing parameter(s) (average, standard deviation). The lot shall be rejected if the second sample fails to comply with the applicable requirements (see 4,6.4) . If the sample fails to comply with the requirements, a second sample of 40 cartridges shall be tested. The lot shall be rejected if the second sample fails to com
