1、I I I t I t i I I 1 i 1 1 I I l t I i I I i t I I I I I I t I I t L 1 I I I l MIL-P-85723 13 9999906 0365816 2 I s-37-03 MIL-P-85723(AS) 12 AUGST 1986 M I I, 1: TA KY S P EC I FI C AT I O N PROJECTILE, 20 MILLLMETEK, SEML-AKMOK PIERCING, HIGH EXPLOSIVE INCtiNDIARY, PGU-28/B This specification is app
2、roved for use within the Naval Air Systems Command, Department of the Navy and is available for iise by all Departments and Agencies of the Departnient of Defense. 1. SCOPE 1.1 Scope. “hie specification establishes the production and acceptance requirements for the Projectile, 20 mi1.1l.meter (niin)
3、 Semi-Armor Piercing, High Explosive Incendiary Projectile (SAPHEI), PGU-28/B, referred herein as the “pr oj ec t i le . ” a Beneficial comments (reconuneridations, additions, deletions) and any per- tinent data which may be of use in iinproving this document should be addressed to: Commanding OEfic
4、er, Naval Air Engineering Center, Systems Engineering and Standardization Department (SESD), Code 93, Lakehurst, NJ 08733-5 1 O0 , by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document, or by letter. AMSC N3932 DISTRIBUTION STA
5、TEMENT A. Approved for public release; distribution is unlimited. / -. THIS DOCUMENT CONTAINS 20 PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-85723 33 m 7777706 0365837 4 HU 2. APPLICABLE DOCUMENTS 2.1 Government docirnierits. 2.1.1 S
6、pecifications iirirl Stiiiidiids. The following specifications and standards form a part: of thls specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defeme Index of Specifications and Standar
7、ds (DODISS) and siipplement thereto, cited in the solicitation. SPECIF KATIONS Federal TT-C-4 90 Military MIL-C-857 17 STANDARDS Military MIL-STD- 1 O5 MIL-STD-65 1 MIL-STD-882 MIL-STD-1167 MIL-STD-1168 MIL-STD-1169 MIL-STD-1235 2 Cleaning Methods and Pretreatment of Ferrous Surfaces for Organic Coa
8、tings . Cartridge, 20mm, Semi-Armor Piercing, High Explosive Incendiary, PGU-28/Be Sampling Procedures and Table6 for Inspection by Attributes. Identification Marking of U.S. Military Property. Visual Inspection Standards for 20mm Ammunition and Components. System Safety Program Requirements. Ammuni
9、tion Data Cards. Lot Numbering of Ammunition. PackaRing, Packing and Marking for Slitpmciit of Inert Ammunition Component t3. Single Multilevel Continuous Sampling Procedures and Tables for Inspection by Attributes. Provided by IHSNot for ResaleNo reproduction or networking permitted without license
10、 from IHS-,-,-i I I I I I I 1 I 1 I I I l l I t I E t I I I I I t f i i ! I I l i- I i I I 1 r I MIL-P-85723 23 7977706 0365828 6 I 2.1.2 Other Government drawings and publicatlont. The following other Government drawings and publications form a part OP this specification to the extent specified her
11、ein. Unless otherwiee specified, the seueti will be those in effect on the date of the solicitation. DRAWINGS Naval Air Cyst eine Corninand (Code Ident 30003) 1575AS101 2 1575AS102 1575AS103 1575AS104 1575AS105 1575AS106 1575AS107 1575AS108 157 5ASl O9 Department of the Army (Code Ident 19201) 72588
12、16 Projectile. Charged Projectile Assembly Body. Charged Nose Assembly. Disc, Closure Nozzle. Painted Projectile Body Assembly. Projectile Assembly, 20mm. Body, Projectile. Nose, Cap. Pellet, Zirconium. Blank, Rotating Rand, for Project ilee 20mm. B7259545 Operating Instructions. DI1075203 Detector,
13、 Eddy Current Flow. PUBLICATIONS U.S. Army Material Command AMCR 715-505 Ammunition Ballistic Acceptance Test Methods, Volume 8, Test Procedures for 20mm Cartridges. (Copies of specifications, standards, drawings, and publications required by contractors in connection with specific acqui6ition funct
14、ions should be obtained from the contracting activity or as directed by the contracting activity.) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-5723 33 7779706 0365837 8 M 2.2 Other publicatlons. The following documents form a part of this
15、 specification to the extent specified herein. ilrilem otherwise specified, the iesues of the documents which are DOD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS shall be the issu
16、e of the nongovernment dociiments which is current on the date of the solicitation. AMERICAN SOCIETY POR TESTING AND MATERIALS (ASTM) ASTM B117-64 ASTM E18-67 Method of Test for Salt Sprny (Fog) Te s t ing. Method of Test for Rockwell Hardness aiid Rockwell Superficial Hardness of Meta1 Lic Ma terla
17、ls. (Application for copies sIiouLd he addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, YA 19103.) 2.3 Order of precedence. In the event OE a conflict between the text OE this specification and the references cited herein, the text of this speci- fication
18、shall take prec.edence. Nothing In this specification, however, shall supersede applicable laws aiid reguLatLoris unless ci specific exemption has been obtained. 3 . REQUIKEMENCS 3.1 Item description. The PGU-28/l3 SAiIIEI projectile shall consist of a hardened nose cap, a hardened steel body, and a
19、 baiideci projectile aseeinbly. 3.2 Characteristfcs. 3.2.1 Perforiiiaiice. Wheii iisseiiibled es art of a 2Oiurn cartridge, the pro- jectile shall meet the performance requirements specified in MIL-C-85717. 3.2.1.1 Metal parts security. The projectile metal parts when assembled into cartridges shall
20、 not separate when tested for metal parts security in accordance with MXL-C-85717. 3.3 Design and contjtrucclori. 3.3.1 Productlon drawings. The projectlle shall be fabricated in accord- ance with the applicable requirements specified on Drawing 1575AS101 and the drawings and documents referenced th
21、ereon. 3.3.2 Standards of manufacture. 3.3.2.1 Rardness. The body and nose shall. be in accordance with the respective hardness requirements of rawings 1575AS107 and 1575AS108. 4 a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-5723 13 m 97799
22、06 0365820 i.I m 3.3.2.2 Rotating band. The rotating band blank and the rotating band seat shall be clean at the time of banding. Shot or sandblasting shall not be used to clean the serrated band seat after knurling. The rotating band blank shall fill the band seat. 3.3.2.3 Projectile body soundness
23、. The projectile body shall be free of ferrous metal discontinuity. 3.3.2.4 Protective coating. 3.3.2.4.1 Phosphate coating. The pretreatment process used shall be in accordance with applicable requirements of Drawing 1575AS101. The phosphate coating shall be as specified in the requirements of TT-C
24、-490 for appear- ance and minimum weight, as applicable to the type of phosphate coating. 3.3.2.4.2 Paint coating. The paint coating shall be in accordance with the applicable requirements of Drawing 1575AS101. Exterior paint adhesion shall be in accordance with applicable requirements of TT-C-490.
25、3.3.2.4.3 Corrosion resistance. The painted exterior surfaces of the projectile body shall show no evidence of corrosion or rust which will cause pitting or damage to the projectile when exposed to salt fog. coloration of the projectile shall not constitute failure. Dis- 3.4 First article. When spec
26、ified in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.3 and 6.3). 3.5 System safety. System safety shall assure safety for all personnel and equipment during all phases of test and operations, including storage, packaging, handling and transportation
27、. System safety engineering and management activities shall be in accordance with MIL-STD-882 (see 6.2.2). 3.6 Workmanship. All parts and assemblies shall be fabricated, loaded, and assembled in a manner that will assure compliance with all requirements of this specification. They shall be free of b
28、urrs, 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 continuous. Light scr
29、atches shall not exceed the defect criteria. 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 contractor is responsible for the perform
30、ance of all inspection requirements 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 herein unless disapproved by the Government. The Gove
31、rnment reserves the 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. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
32、-,-MIL-P-85723 13 777770b 03b521 b MIL-P-857 23 ( AS) 4.1.1 Responsibility for compliance. All items must meet all require- ments 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 an
33、y inspection requirements in the speci- fication shall not relieve the contractor of the responsibiity of assuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling in quality confor- mance does not authorize submission of
34、 known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. 4.2 Classification of inspections. The inspection requirements spe- cified herein are classified as follows: a. First article inspection (see 4.3). b. Quality conformance ins
35、pection (see 4.4). 4.3 First article inspection. Unless otherwise specified in the contract or purchase order, the contractor shall furnish a first article sample of 50 projectiles to the testing activity designated in the contract or purchase order for first article inspection and approval (see 6.2
36、.2 and 6.3). First article approval is valid only on the contact under which it is granted, unless specifically extended by the contracting activity to other contracts. The first article sample shall be manufactured using the same methods, materials, processes, and procedures proposed for production
37、. Any production prior to approval of the first article samples shall be at the risk of the contractor. After approval of the first article sample, changes in material, processes, procedures, or design shall require prior written approval from the contracting activity and requalification may be requ
38、ired. production and shall consist of: The first article shall be selected at the beginning of regular 50 Rotating band blanks 125 Nose caps 125 Discs, closure nozzle 125 Bodies, unbanded 125 125 Body and rotating band assemblies (uncoated) Body and rotating band assemblies (painted) 3 Standard pane
39、ls First article sample lot identification shall be in accordance with MIL-STD-1168. 4.3.1 First article sample failure. Failure of the sample to comply with requirements of the drawings and specifications shall be cause for sample re j ection. 6 Provided by IHSNot for ResaleNo reproduction or netwo
40、rking permitted without license from IHS-,-,-I MIL-P-85723 13 9979906 0365822 8 . 4.4 Quality conformance inspection. 4.4.1 Submission of product. The product shall be submitted in accor- dance with MIL-STD-105 or MIL-STD-1235, as applicable. 4.4.1.1 - Lot. A lot shall consist of projectile metal pa
41、rts produced by one manufacturer in one unchanged process in accordance with the same drawings, and the same specifications. 4.4.1.2 Lot identification. Each painted projectile assembly and each packed assembly lot shall be identified in accordance with applicable drawings and MIL-STD-1168. Each pac
42、ked lot of closure discs and each packed lot of noses shall be identified in accordance with MIL-STD-1168 and MIL-STD-1169. 4.4.2 Examination. A 100-percent examination shall be performed by the contractor for all critical defects. Examination for major and minor defects shall be performed as specif
43、ied herein. Each part and each assembly found to be defective shall be rejected. 4.4.2.1 Sampling and acceptance criteria. The sampling plans and proce- dures shall be in accordance with MIL-STD-105 or MIL-STD-1235. To deter- mine product acceptability, major or minor defects as listed herein shall
44、be considered on a class basis or individually. However, where major defects are considered 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 4.4.2.2). Wh
45、ere three or less defects appear in a classification or where MIL-STD-1235 is used, sampling plans applicable to a class shall not be used for major defects (see 6.4). 4.4.2.2 AQLs. The following AQLs are assigned to major and minor defects: a. Individual : Percent : Maj or 0.25 Minor 0.40 b. Class
46、basis: Percent: Major 1 e50 Minor 2.50 C. Individual defects associated with the class basis: Percent : Maj or 0.40 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-5723 13 7777706 03b5823 T I 4.4.3 Classification of defects. The classificatio
47、n of defects shall be as specified in Tables I through IX herein and MIL-STD-651. TABLE I. Rotating band blank (see Drawing 7258816). Categories and defects CRITICAL: None defined. MAJOR: I 101. Foreign matter 102. Defective metal, including lamination 103. Incomplete or deformed MINOR: - 201. Width
48、, maximum Method of inspection - Visual Visual Visual - i/ Gage - A rotating band blank which is deformed or judged to lack sufficient metal in any part of its width or thickness to provide for complete band seat fill and minimum rotating band profile dimensions shall be classed defective. 4.4.4 Acc
49、eptance tests. The tests listed in Table X shall be conducted in compliance with the test methods and procedures prescribed herein (see 6.2.2). The samples shall be selected in such a manner as to be representative of the entire lot. The sample size and acceptance criteria for each test shall be as specified herein. 4.5 Test methods and Drocedures. 4.5.1 Performance. The projectile when assembled as part of a 20mm cartridge, shall p
