1、I MIL-P-b3252A = 99999b 2031195 5T0 28 September 1995 SU?ZHSZDING DQ-P-63252 (Mt) 29 Januory 1979 MILITMY S3ECIFISATION PROJECTILE, 153X4, US, M795 LOADING, ASSZELING Ml9 PACKING This speciiication is approved for use by the U.S. Amy Armamezt, Research Development anc! Znoineering Ce-titer, end is a
2、vailable fcr Ese by all DepartmeXs and Agencies f the Department of Defence. 1. SCOPE 1.1 -. This specification covers tne requirements, esaninations and tests for Projectile, 155MM, HE, M795 (see 6.1). 2. ApPLICA3LZ DOCUMENTS 2.1 -!f. 2.1.1 SPaclficatilbrts,s,andarcfs t I an d. The Zullowing specif
3、icarions, standards, :a& Xandardiztion bcumenl Improvement Proposai - -. .-.-._C.-. . ._ . . ._ _I !?D F?m 1226) S e?mQ ! lhe : !his dOCiJmEr: C)? by letter I- - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. . STANDARDS MILITARY .- ,- MIL-STD-410
4、 - Nondestructive Testing Personnel . Qualification and Certification MIL-STD-453 - Inspection, Radiographic (Unless otherwise indicated, copies of federal and military specifications, standards and handbooks are available from: DODSSP Customer Service, standardization Documents Order Desk, 700 Robb
5、ins Avenue, 3ldg 4D, Philadelphia, PA 13111- . 5094,) 2.1.2 Other Gave rnment do drawfaus and -. drawings and publications form a part of this document to the extent specified herein. issues are those cited in the solicitation. The following otnes Government documents, Unless otherwise specified, th
6、e DRAWINGS (see 6.4) U.S. $my Armzments, Research, Development an& Engineering Center (ARDZC) PRODUCT AND PACKAGING DRAWINGS 9312769 - Projectile, 155MM, HE, M795 Loading, Assy 6 Marking 9329574 - Packing and Marking for Pallet Wood Ammunition for Projectile, 155MM, HE, M? 95 Packing an3 Marking for
7、 155M Projectile Pailet 12914619 - (Copies of other Government documents, drawings, and publications required by contractors in connection with specific acquisition functions should be obtained from the contracting zctivity or as irected by the contracting zctivity.) 2.2 of D-. In the event of a con
8、flict between the text of chis dccumerit md the references cited herein, the text OZ this aocument takes precedence. Nothirig in this document, howevei, supersGdes ztpplicable laws anc regulations wlesc i! rpecifir esemptlon has been oktzined. (See contract provisions for cdditionaf precedence crite
9、ri?! . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-9999906 2033397 373 3. REQUIRSMENTS . Material and wts shall be_?4n 3.1 Material accordance with applicable drawings and specifications. 3.1.1 C1ean-gxpn-ci.i . Clean explosive scrap produced in
10、regular operations may be remelted and reused provided that it complies with the requirements for the grade of high explosive specified, except for form. Scrap from floor sweepings, ventilation and suction apparatus (other thzn from drillin9 operctions specifically controiled to prevent contaminatio
11、n of explosive) shall not be used (see 6.6). - 3.2 assemblies The components and assemblies shall comply with ali requirements specified on Drawing 9312769, all associated drawings, and with all requirements specified in applicable specifications and drawings. *I 3.3 CaPital-ion 9 &* inah e-xDlosive
12、 charaes- 3.3.1 _Cracks and b- cal 7- . Cracks and cavities within the explosive charge shall not exceed the requirements specified in Table I when determined in accordance with 4.5.1.1. Cavities having a maximum (max) projected length of 0.6m cr less shall be disregarded, except in Segment A. Any d
13、efect in Segment A that is of sufficient size to register an indication on the radiograph shall be cuse for rejection recardless of its projected area. ! Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-b3252A 9999906 203LL98 20T MIL-P-63252A (
14、AR) TABLE I blyL. . A 8 C D Sum of projected areas of the O 161.0 323.0 323.0 covities, excluding pipes, cracks and annular rings, square millimeters (sq. mm) excluding pipes, .cracks, and annular rings (mm). area (sq. nun). width (m) Cracks, max. projected width (mm) O width (mm) Projected length o
15、f any cavity O 12.7 12.7 19. o Piping cavities max. projected O Piping cavities max. projected O 167.0 323.0 - 6.4 6.4 - 0.8 0.8 - O 6.4 - Annular rings, max, projected O Piping cavitation is defined as cavitztion located on or neer the vertical center line of the projectile with the longitudinal ax
16、is (length) three times or greater than the width, An annular ring is defined as cavitation that takes the form of a ring or portion thereof around the periphery of the C2St. . Cavities formed due to v. L 3.3.2 Wace Ca chipped or broken explosive from the sidewalls of the fuze well shall not extend
17、in aggregate around more than 1/4 of the circumference. The max. dimension of any visible cavity In the faced surface of the charge shall not exceed 6.4ai in any direction arid the total erea of all cavities shall not exceed 80 percent of the surface area. (Czvities having a max. dimension of 0.6m o
18、r less shall be disregarded in chis rrim-i?tRtion as shzll voids within the applicable forwara region of the fuze vel1 prescrioeci Ls. dcq. 5312769). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-63252A m 9999906 2031199 i4b m Provided by IH
19、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-9 9999906 2033200 798 9 MIL-P-63252A (AF,) 3.3.3 -mas. Porous areas sha2.1 be treated as cavities and shall be subject to the restrictions placed upon cavities, except that 80 percent of-the projected length and 80 p
20、ercent of the projected area sh11 conside“ *ed for acceptance prposes . permitted in Segment A and not snore than a total of two transverse.cracks shall be permitted in Segments B and C combined. . No transverse crack shall be 3.3.4 Wed charoec c. Cracks shall be disregarded in Segment D. 3.3.5 . Th
21、ere shall be no discernible base separation between the base of the projectile cavity and the explosive charge when inspected by radiography. maximum allowable base separation shall be .38m (.O15 in.) determined by sectioning, in accordance with 4.5.4. The 3.3-6 v. There shall be no cracks, pipes or
22、 thin wall sections in the projectile- 3-3.7 , There shall be no foreign material in the explosive charge. 3.4.1 . The mcting surfaces of threads shall be free of caked explosive and ail threads shall be free of foreign material, acetone or methylene chloride shall be used. taken to prevent the chem
23、ical cleaner from coming into contact with the charge and becoming entrapped in the projectile. 3.4.2 =id -sives . Solid explosive shall not be in the projectile before loading or added to the projectile during initial pouring or cooling. If a chemical cleaner is required, Care shall be 3.4.3 o. Pro
24、jectile having the anterior wall imperfectly coated shall not be loaded. of the projectile shell be dry when the hicjh explosive is pcurod into the projectile (see 4.4.2.1). The interior surface 3.4.4 ELQ&CLifenr -Uls . The iriterior cavity of the prcjectile prior to loading shall be free fron forei
25、gri nattp-. 3.4.5 &a* . 7 ?. 1, ?fie fiize well Shall be free from any ioreign marter or loose explosive prior to assembly of lie iiit:L . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-63252A m 9999906 2031201 624 m . There shall be no 3.4.6
26、Unsolidifiedi cf Q& unsoliifie pool of paint or blister &-:he projectile *II cavity prior to loading of the explos fi ve. 3.4.7 ?ixifLUor surfaces . There shall be no explosive on the exterior surface of the projectile after loading. 3.4-8. Bodv caw . scale, fins, burrs, draw marks, laminations, emb
27、edded foreign matter, folds, pits and sharp edges, in accordance with visual standards (see 6.11). The body cavity shall be free or 3.5 Pm . . There shall be no premature burst or indication of metal parts separation in the gun bore or in flight. 3-6 Eirst artirk . When specified in the contract or
28、purchase order (see 6.2), a sample shall be subjected to first srticle inspection in accordance with the tec-mica provisions herein (see 4.3) . 3.7 Ex-udati6n . After heat cycling of HE filled projectiles, there shsll be no exudation in the fuze well or exterior of the projectile. as shown or. the a
29、pplicable drawing, in the applicable specifications and the following: 3.8 Werkmanshis . The requirements of workmanship are 3.8.1 Cle . If required the cleaning method shall not be injurious to any of the parts nor shall the parts be cuntaninated by the cleaning agent. *. Care shall be exercised at
30、 all times so that the rotating band of each projectile will not be nicked or burred. 3.8 .2 : c 3.8.3 Painting . Painting shall comply with the requirements of the applicable drawing. All paint shall be dry to the tcuch before testing end packirtg for shipment. Drying time prior io tesring shall be
31、 in accordance uith the applicable s2ecificGtion. 5.8.4 ,oroion ma t+e:. No pert or assenbly shall contain CIIL, cj:rc.be, LLL, iLzE _4_cL_ -q+-?t-*qT ., c+r Prh-T fqr-i-9 -?t-r. ?-C f L. ? i =- i nc: p:cq 2nd insppct for exiidat.ion visually. 27 Provided by IHSNot for ResaleNo reproduction or netwo
32、rking permitted without license from IHS-,-,- NIL-P-b3252A 9999906 2031222 359 MIL-?-63252A (AR) . After heat 4.5.4 Dateman of * treatment the samples from each post cycle heat treatment lot shall be cooled to ambient temperature. The projectiles shall then be conditioned for a minimum of eight (8)
33、hours at 21 f Celsius. A notch shall be cut from the base in the following manner: Cut parallel to the base approximately 9Omm up from the base to the center of the projectile axis, next cut through the base towzrd the nose perpendicular to aforementioned cut so as to remove a wedge of steel to expo
34、se explosive and metal parts interface. Next subject projectile to an acceleration level of 200 to 250 Gs in the nose down orientation and maintain projectile in that orientation to measure for base separation with a 1.2Scm (max) wide feeler gage (see 6.13). 5 degree Celsius and sectioned at 21 A 5
35、degree 5- PACKAGING 5.1.1 PackinP - Level A. The projectiles shall be palletized in accordance with drawing 12914619. 5-1.2 hlt,p r =tive Par- - Level A. specific approval of the contracting officer, the projectiles shall be palletized in accordance with drawing 9329574. Only with the 5.2 Markincr .
36、 Markings shall be in accordance with drawing 12914619 or 9329574 as applicable. 6. NOTES (This section coatains information of a general or explanatory nature that may be helpful, but is not manciatory .I 6.1 ,rnt9nd,d 0 use . The item covered by this specification is intended for use on the 155MM,
37、 Howitzer. 6.2 7 &*L -7-,- rL.,dac fcr vse 5r1 radio-raphino this projectile: 29 ! Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Eastmori Xo-dal: Cornpcny 1187 Ridge Rod, West Rochester, New York i4650 Film Types: AA, T, AX-1 or M E. I. DuPont de N
38、emours and Company Photo Prcducts Department Wifmington, Delaware 19898 Lilm Types: NOT-55, NDT-65 or NDT-70 GAF CorporaZion 140 West 51st Street New York City, New York 10020 Film Types: 800 or 400 6.9 mal pnrts defects, The procurdq activity will be notified of any projectile rejected for metal pa
39、rts defects found upon inspect-ion of the radiographs. The rejected projectile will be held pending disposition by the procuring activity. with the applicakle requirement is in doubt as a result of visual examination the characteristic may be mezsureb or gaged to determine acceptability. with those
40、used for metal parts acceptance shall be established at or providea to the contractors plant in compliance with 3.4.8. 6.10 Visualon .-+ qmUfiifiratLM . When cornpiiarice 6.11 Yisual stp n dards . Visual standards consistent 6.12 SI. ission cf Da:Utic tuta andtion ata car&. records for itens pricure
41、d by the Departmnt of the Army, one copy of all ballistic rest data and ammunition data cards shall be forwzrded to Commander, ARDEC, ATTN: AMSTA-AR-QAA- R, and MISTA-AR-tSA-M, Picatinny Arsenal, NJ 07806-5000, and X4SXC-QPD-I Army Master Depcsitory, Rock Island, IL 61299- 6000. Ir, aition to the normal distribution of . Range ana deflection are e f lec L. sp11 6.12.1 3arroe end n ct technical req=a:rements cf this specification, They dtt: mzridetcry perforT-?cp roquiromonts that are achieved by Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
