1、- I I I l l I l 1 I I I I I I I I l I l l l I I l l I 1 I i I t I I l l l I t I I I I I I I I I l I 1 I MIL-P-85723 (1) 13 W 99999Ob OYb78b8 5 = I I NCH-POUND MIL-P-85723(AS) AMENDMENT 1 31 January 1991 MILITARY SPECIFICATION PROJECTILE, 20 MILLIMETER, SEMI-ARMOR PIERCING, HIGH EXPLOSIVE INCENDIARY,
2、 PGU-28/B This amendment forms a part of MIL-P-85723(AS), dated 12 August 1986, and is approved for use by the Naval Air Systems Command, Department of the Navy and is of the Department of Defense. 6.2.11.“ available for use by all Departments and Agencies PAGE 2 t 2.1.1, last line, after “solicitat
3、ion,“ add “(see 2.1 1 , under “MIL-STD-1235“ add “(Un1 ess otherwi se i ndi cated. coDi es of federa and mi 1 i tary specif cations, standards, and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.)“ PAGE 3 2.1.2, und
4、er “1575AS109“ add “(Copies of Naval Air Systems Command drawings are available from the Naval Air Technical Services Facility (NATSF) (Code 3121, 700 Robbins Avenue, Philadelphia, PA 191 11-5097.)“ 2.1.2, under “Cepartment of the Army,“ delete “DI1075203“ and substitute “Dl 1075203. II and add “Dl
5、1075245 Production Check Standards (Copies are available from the Department of the Army, U.S. Army Information System Command (ASQNC-APP OPP-P), Picatinny Arsenal, NJ 07806-5000.) 2.1.2, under “US Army Material Command,“below “AMCR 715-505,“delete “(Copies of specifications, standards, drawings, pu
6、bl ications, and other Government documents required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.)“ and substitute “(Copies are available from the Commander, USAISC-Letter Kenny, Attn: AS
7、Q-NC-DL-OIP, Chambersburg, PA 17201-4186. I AMSC N/A 1 of 8 FSC 1305 DISTRIBUTION STATEMENT A. Approved for publ ic release; distri bution is un1 imi ted. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-85723(AS) AMENDMENT 1 1 PAGE 4 Delete exi
8、sting paragraph 2.2 in its entirety and substitute “2.2 Non-Government publ i cations. The fol lowing document(s1 form a part of this Unless otherwise specified, the issues of documents not listed document to the extent specified herein. Unless otherwise specified, the issues of the documents which
9、are DoD adopted are those listed in the issue of the DODISS cited in the solicitation. in the DODISS are the issues of the documents cited in the solicitation (see 6.2.11.“ 2.2, under “AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)“ delete “ASTM B117-64“ and “ASTM E18-67“ and substi tute “ASTM 81
10、17“ and “ASTM E18“ respectively. 2.2, below “(Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.)“ add Below “ASTM El 8, II add “ASTM F519 Testing for Hydrogen Embri ttlement Re1 ief .II 1, “(Non-Government standard
11、s and other publ i cations are normal ly avai 1 able from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.)“ PAGE 5 3.3.2.2, third line, delete “serrated.“ 3,3.2.4.1, second line, delete “1575AS
12、101“ and substi tute “1575AS105.“ Delete existing paragraph 3.3.2.4.2 in its entirety and substitute “3.3.2.4.2 Paint coating. The paint coating shall be in accordance with the applicable requirements of Drawing 1575AS105. accordance with appl icable requirements of TT-C-490. be indicated by the exp
13、osure of base metal or underlying phosphate in any of the fol lowing conditions. Exterior paint adhesion shall be in Unsatisfactory adhesion shall a. Any area exceeding 0.090 square inch b. More than one area exceeding 0.045 square inch c. More than five areas of 0.021 square inch“ 3.3.2.4.3, third
14、line, after -“salt fog,“ add “for not less than 24 hours.“ Add new paragraph 3.3.2.4.4 as follows. relief of hydrogen embrittlement in accordance with the applicable requirements of TT-C-490. Validation of process shall be in accordance with 4.5.6.1.1.“ “3.3.2,4.4 Hydrogen embri ttlement. All projec
15、tiles shall be processed for 4.1, third line, after “requirements“ add “(examinations and tests).“ 4.1, last line, delete “assure“ and substitute “ensure.“ PAGE 6 4.1.1, first line, delete “must“ and substitute “shall.“ 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without l
16、icense from IHS-,-,-I I l I I 1 1 I l I I I l I I l I l I I I I I I I MIL-P-85723 (1) 13 W 999990b Oqb7870 3 MIL-P-85723(AS) AMENDMENT 1 4.1.1, seventh and eighth 1 i nes, delete “Sampl i ng in qual i ty conformance“ and substitute “Sampling inspection, as part of manufacturing operations, is an acc
17、eptable practice to ascertai n conformance to requirements, however, thi s - - -. II PAGE 9 Delete existing Table II in its entirety and substitute “TABLE II. Body projectile (see Drawing 1575AS107). Categories and defects CRI TICAL: None defined MAJOR: 101 * 102. 103. 104. 105, 106. 107. 108. 109.
18、Di ame t er bourre 1 et mi n i mum Length, mouth to rear of rotating band seat, maximum Overall length, maximum Runout, large HE cavity 2/ Position small I.D. 2/ Large HE cavity inside diameter 21 Small I.D. 2/ Depth rotating band seat, knurl ing, minimum Runout, boat tail MINOR: 201. Lensth to rear
19、 edse of rotatincr band seat, minimum 202. 203. Foreign matter 204. Diameter rotating band seat knurled Width rotating band seat, mi nimum PAGE 10 le thod of i n spec t i on Gage Gage Gage Gage Gage Gage Gage Vi sua1 /Gage L/ Gage Gage Gage l!. Vi suai Gage II Delete existing Table III in its entire
20、ty and substitute 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-85723 (1) 13 9999906 0467871 5 MI L-P-85723(AS) AMENDMENT 1 “TABLE III. Projectile body assembly (see Drawing 1575AS106). Categories and defects CRITICAL : 1. Ferrous metal dis
21、continuity MAJOR: 101. 102. 103. 104, 105. 106, 107. 108. 109. 110. Length mouth to rear edge of rotating band Diameter, body rear of rotating band, minimum Diameter of rotating band Position rotating band diameter Width rotating band, overall Location crimp groove Profile crimp groove Radius, rear
22、edge of crimp groove, maximum Void at band/body interface Runout, body rear of rotating band MI NOR : 201. Finish qethod of inspectior Soundness Test (see 4.5.5) Gage Gage Gage Gage Gage Gage Gage Gage Vi sual Gage Vi sual In Table IV, under “MAJOR“ below “101 ,II add “102, Diameter, body rear of ro
23、tating band, maximum PAGE 11 Gage“ Delete existing Table VI in its entirety and substitute “TABLE VI. Disc, closure nozzle (see Drawing 1575AS104). Categories and defects CRI TI CAL : None defined MAJOR: 101. Throuah diameter .118 11 102. 103. Diameter .516 I/ 104. Position .516 diameter I/ 105. Dia
24、meter .422 I/ Position .118 diameter-to datum L/ MI NOR : 201. Finish 202. Foreign matter 203. Position counterbore diameter to datum 4ethod of inspection Gage Gage Gage Gage Gage Vi sua Vi cual Gage 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
25、MIL-P-5723 (1) 13 m 9999906 OYb7872 7 m Band tightness 3/ Soundness verification 41 Automatic inspection s/ Paint adhesion 61 Corrosion Resistance I/ MI L-P-85723(AS) AMENDMENT 1 31 5 315 13 32 PAGE 12 Delete existing Table VI1 in its entirety and substitute “TABLE VII. Nose cap (see Drawing 1575AS1
26、08). 1 Categories and defects CRITICAL: None defined MAJOR: 101. 102. 103. 104. 105. 106. 107. 108. 109. 110. 111. 112. Nose tip thickness Length .420 Length, 1.243 inches Contour Spherical radius .O75 l/ Location wall thickness .328 11 Wal 1 thickness .O28 11 Inside diameter .375 I/ Diameter .528 1
27、/ Diameter .412 i/ Di ame ter .513-1/ Hardness MI NOR : 201. Surface finish inside and outside 202. Foreign material I PAGE 14 Delete existing Table X in its entirety and substitute “TABLE X. Lot acceptance test. I Sampl e size Metal parts security 1/ Hardness Body 21 Nose 21 13 80 I I tem I Project
28、 i 1 e Body Nose Painted projectile body . Body PCS No. 1 Painted projectile Painted projectile body body Requirement paragraph 3.2.1.1 3.3.2.1 3.3.2.1 3.3.2.2 3.3.2.3 - 3.3.2.4.2 II 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_- MIL-P-5723 (II
29、) 13 m Ob 04b7873 9 m MI L-P-85723(AS) AMENDMENT 1 PAGE 15 - 2/, first line, delete “nose.“ - 41, first and second lines, delete “0.005 inch in width (excluding knurl surfaces)“ and substitute “Production Check Standard (PCS) No. 1 of Drawing D11075245.“ - 51, first 1 ine, delete “Production Clerk S
30、tandard“ and substi tute “production check standard. II Delete existing 6/ in its entirety PAGE 16 Delete “7/“ and “g/“ and renumber “6/“ and “1/“ respectively. 4.5.3, second line, delete “E18-67“ and substitute “E18.“ 4.5.5, second 1 ine, delete “DI1075203“ and substi tute “D11075203.“ 4.5.5.1, sec
31、ond line, delete “87259545“ and substitute ID11075245 for PCS No. 1 .II PAGE 17 4.5.5.2, second line, delete “DI1075203“ and substi tute D11075203.“ 4.5.6.1, second line, delete “1575AS101“ and substi tute “157AS105.“ 4.5.6.1, fifth line, after “recorded“ add a new sentence “Failure of the phosphate
32、 coating on the standard panels to comply with the applicable requirements shall be cause for rejection of al 1 assembl ies phosphated since the preceding test.“ Add a new paragraph as follows “4.5.6.1.1 Hydrogen embrittlement. Validation of the hydrogen embrittlement relief process shall be preform
33、ed on not less than one specimen, prepared, tested, and reported in accordance with ASTM F519, Figures 1 or 2 and paragraphs 6.1.2, 6.2.1, 6.3, 7.1.1, 7.1.2, 7.3 and section 9.0 except: a. The coated specimen shall be subjected for not less than 200 hours to a sustained load equal to 75 2 1 percent
34、of the notched average tensile strength of the material, as determined by not less than three notched specimens not subjected to cleaning, coating, or relief treatment. tested in accordance with ASTM E8 to determine the average notched tensile strength for the material. The three untreated specimens
35、 shall be b. The coated specimens shall be examined for cracks under 1OX magnification with an approximate illumination of 100 LUX. A cracked specimen shall be cause for rejection of units produced since the last acceptable specimen.“ 4.5.6.2, last line, delete “recorded as a defect“ and substitute
36、“evaluated in accordance with 4.5.6.3.“ 6 I l Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-CS23 (1) 13 m 999990b 04b7874 O m MIL-P-85723(AS) AMENDMENT 1 PAGE 18 4.5.6.4, second line, delete “ASTM 8117-64“ and substitute “ASTM 8117,“ 5.1 and
37、 5.2, after “bodies,“ delete I, closure discs, and noses.“ Below “6. NOTES“ add may be helpful, but is not mandatory.)“ “(This section contains information of a general or explanatory nature that PAGE 19 6.2.1, add “e. Issue of DODISS to be cited in the solictation, and if required, the specific iss
38、ue of individual documents referenced (see 2.1.1 and 2.2).“ Delete existing 6.2.2 in its entirety and substitute “6.2.2 Consideration of data requirements, The fol lowing data requirements should be considered when this mecification is amlied on a contract. The applicable Data Item Descriptions (DID
39、S) should be reviewed in conjunction with the specific acquisition to ensure that only essential data are requested/provided and that the DIDs are tailored to reflect the requirements of the specific acquisition. To ensure correct contractual application of the data requirements, a Contract Data Req
40、uirements, List (DD Form 1423) must be prepared to obtain the data, except where DOD FAR Supplement 27.475-1 exempts the requirement for a DD Form 1423. Ref er en c e Paragraph DID Number DID Title Suggested Tai loring 3.5 DI-SAFT-80102 Safety assessment report - 4.3, 4.4.4 DI-NDTI-80566 Test plan -
41、 4.3, 4.4.4 DI-T-2072 Reports, test - 5.4 DI-MISC-80043 Ammunition data card - The above DIDS were those cleared as of the date of this specification. The current issue of DOD 5010.12-L, Acquisition Management Systems and Data Requirements Control List (AMSDL), must be researched to ensure that only
42、 current, cleared DIDs are cited on the DD Form 1423.“ PAGE 20 Add paragraphs 6.7 and 6.8 as follows “6.7 Intermediate point inspection. The classification of defects identifies the characteristics (among other things) for acceptance inspection. to modify the sequence of inspection stations to best
43、suit the manufacturing process. Inspection for defect characteristics which will be hidden or altered by subsequent processing operations (including unrelated operations), should be scheduled to prevent premature acceptance which could be detrimental to the attainment of optimum product quality in t
44、he end item.“ It may be necessary 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-“6.8 Safety precautions. The loading, assembly, and handling of the explosive subassemblies, and the finished items covered by this specification, involve hazardous o
45、perations and therefore require sui table explosive safety precautions. Standard safety precautions for explosive-loaded items are contained in DOD 4145.26M.I Delete existing “6.7“ and renumber as 6.9.“ 0 6.9, delete “Armor piercing ammunition, Explosives,. Incendiary ammuntion, PGU-28/B, Projectiles“ and “20 millimeter.“ Preparing Activity: Navy - AS ( Pro j ec t 1 305-ND73 ) 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
