1、? 3-37-05 MIL-P-85766(AS) AUGUST 1986 MIL ITARY SPEC IF KATION PROJECTILE, 20 MILLIMETER, TARGET PKACTICE-TRACER PGU-3 O/ B This specification is approved for use within the Naval Air Systems Command, Department of the Navy and ie available for use by all Departments and Agencies of the Department o
2、f Defense. 1. SCOPE. 1.1 Scope. This specification establishes the requirements for manufac- ture and acceptance of the Projecttle, 20 Millimeter (rnrn), Target Practice- Tracer, PGU-3O/B, referred to herein as the ?projectile.? Beneficial comments (recommendations, additions, deletions) and any per
3、- tinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Air Engineering Center, Systems Engineering and Standardization Department (SESD), Code 93, Lakehurst, NJ 08733-5100 Improvement Proposal (DD Form 1426) appearing at the end of this documen
4、t, or by letter. by using the self-addressed Standardization Document AMSC N3934 DISTRIBUTION STATEMENT A. unlimited. Approved for public release; distribution is THIS DOCUMENT CONTAINS a PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-8
5、5766 13 777770b 03b5787 O U 2. APPLICABLE DOCUMENTS. 2.1 Government documents. 2.1.1 Speicificatiansnrid standards. The following specifications and standards form ci part OE this Hpeclfication to tlie extent epecified hereln. Unless otherwise specified, the issues of these documents shall be those
6、listed in the issue of the Department of Defense Index o Specifleatione arid Standards (DOBISS) and supplement thereto, cited in the eolicitation. . SPECIFICATIONS Federal TT-C-490 Military MIL-C-85764 STANDARDS Military MIL-STD-105 MIL-STD-131) MIL-STD-651 MIL-STD-882 MIL-STD-1167 MIL-STD-1168 MIL-
7、STD-1169 MIL-STD-1235 2 Cleaning Methods and Pretreatment of Ferrous Surfaces for Organic Coatings. Cartridge, 20mm, Target Practice PGU-27/B and Cartridge, 20mm, Target Practice-Tracer PGU-30/Be Sampling Procedures and Tables for Inspection by Attributes. Ldentificaiton Marking of U.S. Military Pro
8、perty. Visual Inspection Standards for 20mm Ammuni ti on Component s. System Safety Program Requiremente. Ammunition Data Cards. Lot Numbering of Ammunition. Packaging, Packing, and Marking for Shipment of nert Ammunition Components . Single Multilevel Continuous Samp- ling Procedures and Tables for
9、 Inspection by Attribute. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-85 766( AS) 2.1.2 Other Government drawings and publicatlons. The following other Government drawings and publications form a part of this specification to the extent spe
10、cified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation. DRAWINGS Naval Air Systeme Command (Code Ident 30003) 1575AS302 1575AS401 1575AS402 1575AS403 1575404 1575AS405 Department of the Army (Code Ident 19201) 7258816 10542428 10542429 12013327
11、 B7 25954 5 DI 1975203 PUBLICATIONS U.S. Army Material Command AMCH 715-505 Nose Cap. Projectile. Projectile Assembly. Projectile Body Assembly. Body, Projectile. Pellet, Tracer Type 1. Blank, Rotating Band, for Projectiles, 20mm. Metering Disc. Pellet, Tracer, Ignition-Type III. Operating Instructi
12、ons, Detector, Eddy Current Plow. Detector, Eddy Current Flow. Auimuiiitori UaLiet tc Acceptance Tetlt Methods, Volume 8, Test procedures for 20mm Cartridges. (Copies of speci-cations, stanLards, drawings, and publications required by contractors in connection with specific acquisition functions sho
13、uld be obtained from the contracting activity or as directed by the contracting act i vi ty . ) 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-5766 33 m 9799906 0365993 9 m 2.2 Other publications. The following document forms a part of this
14、specification to the extent specified herein. iJnless otherwise specified, the issues 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 i.stw:s of dociinitaiits riot lieted fi1 the DODISS ahall be th
15、e issue of the nongoveriiinent documents which Is current on the date of the solci tat ion. AMERICAN SOCIEY FOR TESTING AND MATEKIALS (ACTM) ASTM B117-64 Mechod of Test for Salt Spray (Fog) Testing. (Application for copies should be addressed to the American Society for Testing and Materials, 1916 R
16、ace Street, Philadelphia, PA 19103.) 2.3 Order of precedence. In the event ofa conflict between the text o this Specification arid the referetic.es cited herein, the text of this speci- fication shall take precedence. Nothing iri this tipeclf lcation, however, shall supersede applictthle laws tiiid
17、regtilatione uriletis D tipecif IC exempt toii has been obtained. 3. REQUIREMENTS. 3.1 Item description. The PGU-30/B Target Practice-Tracer projectile, shall coiisist of a steel body, tracer cavity, and ti banded body assembly. 3.2 char acte ris tic. 3.2.1 Perforruaiice. When asseinbled ar3 part of
18、 ti 2Omm cartrtdge, the pro- jectile shall meet the perforinance requirements specified In MIL-C-85764. 3.2.1.1 Metal parts security. The projectile metal parts assembled into cartridges shall not separate when tested for metal parts security in accordance with the applicable requirements of MIL-C-8
19、5764. 3.3 Design and coiistriiction. 3.3.1 Production drawings. “he projectile shall be fabricated in accor- dance with the applctihle requireineritbl specified on Drawing 1575AS401 and the drawings and specifications referenced thereon. 3.3.2 Standards of manufacture. 3.3.2.1 Rotating baiid. The ro
20、tating hand blank and the rotating band seat shall be clean at the tiine of banding. Shot or sandblasting shall not be used to clean the serrated band seat after ktiurling. blank shall fill the band seat. The rotating band 4 Provided by IHSNot for ResaleNo reproduction or networking permitted withou
21、t license from IHS-,-,-L MIL-P-85766 13 M 7979706 0365972 O M _ i 1 i 1, t MIL-P-857 66( AS) 3.3.2.2 Projectile body soundness. The projectile body shall be free of any ferrous metal discontinuity. 3.3.2.3 Protective coating. 3.3.2.3.1 Phosphate coating. The pretreatment process used shall be in acc
22、ordance with applicable requirements of Drawing 1575AS401. The phosphate coating shall be as specified in the requirements of TT-C-490 for appearance and minimum weight, as applicable to the type of phosphate coating, 3.3.2.3.2 Paint coating. The paint coating shall be in accordance with the applica
23、ble requirements of Drawing 1575AS401. Exterior paint adhesion shall- be in accordance with applicable requirements of TT-C-490. 3.3.2.3.3 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
24、projectile when exposed to salt fog. Discoloration of the projectile shall not constitute failure. 3.4 First article. When specified 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
25、all personnel and equipment during all phases of test and operations, including storage, packaging, handling and transportation. 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 and
26、assembled in a manner that will assure compliance with all requirements of this specification. 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 t
27、he cleaning agents. Exterior surface coatings shall be continuous. Light scratches shall not exceed the defect criteria. All required marking and stamping shall be neat and clearly defined. They shall be free of- burrs, chips, sharp edges , 4. QUALITY ASSURANCE PROVISIONS. 4.1 Responsibility for ins
28、pection. Unless otherwise specified in the contact or purchase order (see 6.2.1), the contractor is responsible for the performance 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 facilit
29、ies 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 forth in this specification where such inspections are deemed necessary to assure supplies and services conf
30、orm to prescribed requirements. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-857bb 13 77777Ob 03b5773 2 E MIL-P-85766(AS) 4.1.1 Responsibility for compliance. All items must meet all require- ments of Sections 3 and 5. The inspection set f
31、orth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the speci- fication shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the Governme
32、nt for acceptance comply with all requirements of the contract. Sampling in quality confor- mance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. 4.2 Classification of inspections. The inspe
33、ction requirements spec- ified herein are classified as follows: a. First article inspection (see 4.3). b. Quality conformance inspection (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 p
34、rojectiles to the testing activity designated in the contract or purchase order for first article inspection and approval (see 6.2.2 and 6.3). First article approval is valid only on the contract under which it is granted, unless specifically extended by the contracting activity to other contracts.
35、The first article sample shall be manufactured using the same methods, materials, processes, and procedures proposed for production. 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,
36、processes, procedures, or design shall require prior written approval from the contracting activity and requalification may be required. A first article sample shall be submitted to the testing acti- vity designated in the contract or purchase order for first article inspec- tion and approval (see 6
37、.3). The first article shall be selected at the beginning of regular production and shall consist of: 50 Rotating band blanks 125 Nose caps 125 Bodies, unbanded 125 125 125 Nozzle discs Body and rotating band assemblies (uncoated) Body and rotating band assemblies (painted) 3 Standard panels First a
38、rticle sample lot identification shall be in accordance with MIL-STD-1168. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-85766 13 m 7777706 0365794 4 m 4.3.1 First article sample failure. Failure of the sample to comply with the requiremen
39、ts of the applicable drawings and this specification shall be cause for sample rejection. 4.4 Quality conformance inspection. 4.4.1 Submission of product. The product shall be submitted in accord- dance with MIL-STD-105 or MIL-STD-1235, as applicable. 4.4.1.1 E. A lot shall consist of projectile met
40、al parts produced by one manufacturer in one unchanged process in accordance with the same . drawings and specifications. 4.4.1.2 Lot identification. Each painted projectile assembly and each packed assembly lot shall be identified in accordance with the applicable drawings and MIL-STD-1168 and MIL-
41、STD-130. Each packed lot of closure discs and each packed lot of nose caps shall be identified in accordance with MIL-STD-1168 and MIL-STD-1169. 4.4.2 Examination. A 100-percent inspection shall be performed by the contractor for all critical defects. Examination for major and minor defects shall be
42、 performed as specified 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 determine product acceptability, major or minor defects as li
43、sted herein shall 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
44、 (see 4.4.2.2). Where 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 : i Major 0.25
45、 Minor 0.40 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-UIL-P-857bb 13 7777706 03b5795 b 4.4.2.2 - AQLs. (Continued). b. Class basis: Major Minor Percent : 1 -50 2.50 C. Individual defects associated with the class basis: Percent : Major 0.40 4
46、.4.3 Classification of defects. The classification of defects shall be as specified in Tables I through X herein and in accordance with MIL-STD-651. . TABLE I. Rotating band blank (see Drawing 7258816). Categories and defects Method of inspection / CRITICAL: None defined. i - MAJOR: 101. Foreign mat
47、ter I 102, Defective metal, including lamination I I l i 103. Incompleted or deformed I Visual Vi sua1 i/ Visual - . MINOR: 201. Width, maximum Gage I A rotating band blank which is deformed or judged to lack suf- ficient metal in any part of its width or thickness to provide for complete band seat
48、fill and minimum rotating band profile dimen- sions shall be classed defective. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I t I I I i i i I I 1 I i I I ! I I f I I I I I 1 I I t I I l I l 1 MIL-P-857 66 (AS) TABLE II. Body, projectile (see Dr
49、awing 1575AS404). Categories and defects CRITICAL : 1. Ferrous metal discontinuity MAJOR: 7 101. Diameter bourrelet minimum 102. Diameter body, rear of rotating band, minimum 103. Runout, body rear of rotating band 104. Length, mouth to rear of rotating band, maximui 105. Overall length, maximum 106. Diameter body rear of rotating band, maximum 107. Depth rotating band seat, knurling, minim
