1、MIL-C-8565b 13 m 7747706 0365623 7 m 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.t
2、his specification to the extent specified herein. STANDARDS MILITARY s-37- QJ MIL-C-85656( AS) 22 July 1985 MILITARY SPECIFICATION CARTRIDGE, 25 MM, HIGH EXPLOSIVE INCENDIARY (M5) PGU-2 5 /U This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is avail
3、able for use by all Departments 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), PGU- 25/U High Explosive Incendiary (HEI), herein referred to as the car
4、tridge. 2. APPLICABLE DOCUMENTS. 2.1 Government documents. MIL-STD-105 Sampling Procedures and Tables for Inspection by Attributes. d Beneficial comments (recommendations, additions, deletions) and any per- tinent data which may be of use in improving this document should be addressed to: Commanding
5、 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 letter. 7 -1 y THIS DOCUMENT CONTAINS
6、 /y PAGES !DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimi5ed.“ _. I Licensed by Information Handling Services- _- MIL-C-85b56 13 W 7777906 0365622 O W MIL-STD-109 . 7 MIL-STD-129 MIL-STD-644 MIL-STD-651 MIL-STD-1167 MIL-STD-1168 MIL-STD-1235 MIL-C- 8 5 656 (.AS) Qualit
7、y 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. Ammunition Data Cards. Lot Numbering
8、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 specification to the.extent specified he
9、rein. L DRAWINGS .Naval Air Systems Command (Code Ident 30003) 139 7AS5 90 PUBLICATIONS Code of Federal Regulations (CFR) 49 CFR 100-199 Cartridge, 25 mm, HEI, PGU-25/U. Hazardous Materials Regulations, Department of Transportation. (Applications for copies should be addressed to the Superintendent
10、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 Methods. U 2 Licensed by Information Handling ServicesMIL-C-85656 13 7977706 03b5623 2 AS12013667 .- = Special Am
11、munition Requirements. (Copies of standards, drawings and publications required by manufacturers in connection with speclfic acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.1.3 Order of precedence. In the event of a conflict betwee
12、n 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 1397AS590 and other requirements specified herein. 3.2 Manufacturing process. When specified in the contract or
13、purchase order (6.2.2), all parts and assemblies shall be manufactured by a process approved by th.e contracting activity. 3.3 First article. When specified, a sample shall be subjected to a first article inspection (see 4.4 and 6.3). 3.4 Projectile extraction. The force required to extract the proj
14、ectile 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 (Nm). 3.6 Velocity. The average muzzle velocity of the sample cartridges, conditioned
15、 at 18 to 24 degrees Celsius (OC), shall be 1,100 +25 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 cartridges conditioned at 18“ to 24“C, plus 0.72 standrad deviation of peak chamber pressure, s
16、hall be not greater than 402megapascals (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 pressure, shall be not greater than 496 MPa. Pressure shall be measured with a piezoelect
17、ric type pressure transducer or equal. 3.8 Waterproofness. The average velocity (wet) of projectiles of the sample cartridges, conditioned at 18 to 24OC, shall not vary from the average velocity (dry) by more than 30.5 mps. cartridges shall be not greater than 6.0 milliseconds (ms). The action time
18、of the (wet) 3 Licensed by Information Handling ServicesMIL-C-85656 13 9999906 0365624 3.9 Accuracy. The standard deviation of impacts 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
19、 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 -54 to 62C. 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 f5 degrees ob
20、liquity, at-a distance of 180 to 220 meters. 3.12 Function and casualty. The cartridge shall function at 20 f10“C without firing defects and casualties. 3.13 Workmanship. All parts and assemblies shall be fabricated, loaded, and assembled in a thorough workmanlike manner. burrs, sharp edges, cracks,
21、 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 continuous. Light scratches shall not exceed the
22、 defect criteria defined in 6.4.1. All required marking and stamping shall be neat and clearly defined. They shall be free of 4, QUALITY ASSURANCE PROVISIONS. 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order (see 6.2.11, the contractor is responsible fo
23、r the performance of all inspection requirements as specified herein. as otherwise specified in the contract, 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 t
24、he right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except 4.2 Classification of inspections. The inspection requirements speci- fied herein are classified as follows
25、: a. First article 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 Licensed by Information Handling Services). - - MIL-C-5656 23 m 9777906 0365625 6 m r Paragraph Requireme
26、nt reference/ paragraph inspection No. of sample Acc/rej units Examination or test method Projectile, Assembly, 25 ram, HEI Examination for defects 125 ACC - O 3.1 4.5.3.1 Rej - 1 Case, cartridge, primed 1 Examination for defects 125 ACC - O 3.1 4.5.3.2 Rej - 1 4.4 First article sample inspection. 4
27、.4.1 First article sample. Prior to regular production, a sample shall be submitted in accordance with contract requirements and shall consist of 704 cartridges, 125 primed cases, and 125 projectiles (see 6.3). The sample shall be manufactured using similar equipment, processes and procedures as sha
28、ll be used in regular production. with MIL-STD-1168. Identification shall be in accordance 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. with samples at 20 tlOC. Approval shall be based upon ex
29、amination 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 pro- vided that the test results are not affected by this procedure. Except as otherwise specified herein, the tests shall be conducted 4.4.
30、1.2 First article sample rejection. Failure of the sample to comply with the requirements of the drawings and other documents specified herein shall result in sample disapproval. Determination as to acceptability of any first article sample shall be based upon results of initial test only and no sec
31、ond tests shall be permitted on that first article. rejection criteria for the first article sample shall be as specified in Table I. All first article units shall be inspected 100 percent for criti- cal defects. The acceptance/ 5 Licensed by Information Handling ServicesMIL-C-5656 13 = 9999906 03bS
32、b2b TABLE I. First article inspection. (Continued). Examination or test Cartridge, 25 mm, PGU-22/U (Drawing 1397AS290) Examination for defects Projectile extraction Propellant contamination Projectile torque Pressure Veocity Act ion time Waterproofness Accuracy Projectile function Function/casualty
33、Punctionlcasualty AV-8125mm Gun System NO. Of sample units 125 11 3 2- 11 32- 32 13521 4531 13521 503/ 4031 50 15okl 15okl Acc/re j ACC - O Rej - 1 ACC - 1 Rej - 2 ACC - O Rej - 1 ACC - 1 Rej - 2 ACC - O Rej - 1 ACC - O Rej - 1 ACC - O Rej - 1 ACC - O Rej - 1 ACC - O Rej - 1 ACC - 2 Rej - 3 - - Requ
34、irement paragraph 3.1 3.4 3.13 3.5 3.7 3.6 3.10 3.8 3.9 3.11 3.12 3.12 Paragraph reference/ inspection method 4 :5 .3 .3 4.6.1 4.6.2 4.6.3 4.6.4 4.6.4 4.6.6 4.6.4/4.6.6 4.6.5 4.6.7 4.6.8 4.6.9 6 Licensed by Information Handling ServicesNIL-C-565b 13 7q979Ob 0365627 T W . MIL-C-85656(AS) TABLE I NOTE
35、S (Continued). IQuantity combined for tests .C ZForty-five cartridges each shall be conditioned at -54“ f3C, +21“ i3“C, 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 cart
36、ridge and each packed ammunition. lot shall be identified in accordance with applicable drawings and MIL-STD-1168. stock number assigned by the contracting activity. Each packed lot shall further- be identified by a national 4.5.2 Quality conformance inspection sampling. A 100-percent examina- tion
37、shall be performed by the contractor for all critical defects. Examination for major and minor defects shall be performed as specified herein. Each part and each assembly found to be defective shall be rejected and removed from the lot for disposition. 4.5.2.1 Sampling and acceptance criteria. The s
38、ampling 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 defects as listed herein may be considered collectively on a class basis or they may be considered individually. However, w
39、here 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 Level (AQL) for individual defect associated with the class (see 4.5.2.1.1). In addition, where three or less defects appe
40、ar 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). 7 Licensed by Information Handling Services-_ - MIL-C-85656 13 M 3793706 0365628 L 4.5,2.1.1 - AQLs. The following AQLs are assigned to major and minor defects:
41、 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. Subject to contracting activity approval, inspection of critical, major and minor characteristics shall b
42、e performed 100 percent by a qualified and periodically verified inspection probe instead of sampling the product by using the sampling procedures defined in 4.5.3.1. 4.5.3 Classification of defects.L The classification of defects shall be as follows: 4.5.3.1 Projectile assembly, 25 mm HEI. Method o
43、f Categories and defects inspection AQL (X) CRITICAL : HEI charge depth . Gage io&/ MAJOR: None defined. MINOR: 201. Workmanship (see 3.13) Visual 4.5.3.2 Case, cartridge, primed. 1.5 8 Licensed by Information Handling ServicesI -1 c MIL-C-85656 13 = 9999906 0365629 3 MIL-C-85656(AS) Categories and
44、defects CRITICAL : Method of inspection 1. Ignition system is properly . . . Visual or gage assembled 2. Primer above flush . Gage Categories and defects Method of insDection MAJOR: 101. Depth of primer seating oversize . Gage MINOR: 201. Waterproof sealant missing Vi sual around primer 202. Primer
45、crimp missing . Visual 203. Workmanship (see 3.13) . . . a Vi cual 4.5.3.3 Cartridge (see Drawing 1397AS690), Method of Categories and defects CRITICAL : inspection 1. Split or perforated case . Visual 2. Crack or split in projectile . . 8 . Visual 3. Fuze nose cap missing . . . . Visual 4. Crimp mi
46、ssing (case/projectile) . . Visual 5. Low propellant charge. Gage 10021 log 0.25 0.40 0.40 1.5 I 9 Licensed by Information Handling ServicesMIL-C-85656 13 U-7777706 03b5630 T MAJOR: 101. 102. 103. 104. 105. MINOR : 201. 202 0 203. 204. . 205. MIL-C-8 5 6 5 6 ( AS) Categories and defects Fuze loose.
47、. Overall length, max . Improper or incomplete crimp . (case/pro jectie) Profile and alignment, max Crack, split or dent in fuze . nose cap Categories and defects Marking incorrect, incomplete illegible or missing Scratch, dent, buckle, bulge, wrinkle or fold in case Incorrect type cartridge or . co
48、mponents Gap between fuze and projectile body . Workmanship (see 3.13) Method of inspection Gage- 3/ Gage Visual Gage Vi sual Method of inspection Visual Vi sual Vi sual Vi sual Visual AQL (%) 0.25 io&/ 0.25 io&/ 0.25 AQL (%) 1.5 0.40 0.40 0.40 1.5 LMIL-STO-651 shall apply in defining and evaluating
49、 cartridge visual -If machine inspection is not utilized, inspection verification of defects. prior 100-percent inspections shall be performed in accordance with MIL-STD-105. The minimum size shall be 315 with zero defects allowed. .*- -The cartridge shall be classed defective, when the fuze turns with respect to the projectile body upon application of the required torque in a counterclockwise direction. 10 Licensed by Information Handling ServicesMIL-C-85656 13 m 9977706 0365b3L I m MIL-c-8 5 6 561 AS) 4.5.4 Test. The tests of Table II shall be per
