1、._ .* - MIL-C-63261 13 9999906 0346772 1 =I 5 37 04-55 MIL-C-63 2 6 1 (AR) 9 OCT 1980 MILITARY SPECIFICATION CARTRIDGE, 105MM, TNT, HE, M7 LOADING, ASSEMBLING, AND PACK P U This specification is approved for use by the U.S. Army Armament Research and Development Command, and is available for use by
2、all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 packing for one type of HE, TNT, Single Zoned Cartridge designated as M760 (see 6.1). This specification covers the loading, assembling, and 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of i
3、nvitation for bids or request for proposals, form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-P-46565 -Primer Percucion, M28A2 and M28B2, Loading, Assembling and Packing. MIL-A-48 O 7 8 -Ammunition, Standard Quality As- surance Provisions, General Specif
4、i- cation for STANDARDS MILITARY MIL-STD-10 5 -Sampling Procedures and Tables for MIL-STD-453 -Inspection, Radiographic MIL-STD-1235 -Single and Multilevel Continuous Inspection by Attributes. Sampling Procedures and Tables for by Attributes. Bamfki.l -b (moni.wadrtiq dditionr, HIS DQCUMENT CONTAINS
5、 PAGES. - I ,If, Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i - /- MIL-C-63261 13 m 7799906 0346773 3 mi MIL-C-63261 (AR) -r DRAWINGS (see 6.3) U.S. ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND 9211610-2 -Projectile, 105MM, HE, M1 Loading Asse
6、mbly (TNT Charge) 9278812-2 -Projectile, 105MM, HE, M1, Loading . Assembly (TNT Charge) 9289185 -Cartridge, 105MM, HE, M760, with M200 Propelling Charge Assembly for Howitzer, M204, Loading PRODUCT AND PACKAGE DRAWINGS 7549072 7549073 9258026 9258027 9271850 9275180 9275181 -BOX, Packing, Ammunition
7、 in Fiber Container M105A2 -Container, Ammo, Fiber, M105A2 for 105MM Howitzer Ammunition. -Container, Ammo, Fiber, PA55, for 105MM Howitzer Ammunition without Fuze. -BOX, Packing, Ammo for 105MM How- itzer, Ammo, w/o Fuze in Fiber Container PA55. -Packing and Marking for Box, Wire- bound, Packing Am
8、munition without Fuze in Fiber Container PA55. -Marking for Box, Wirebound, Packing, Ammunition for 105MM Howitzer Ammu- nition. -Packing and Marking for Box, Wire- bound Packing, Ammunition for 105MM, Howitzer Ammunition in Fiber Con- tainer, M105A3. (Copies of specifications, standards, drawings a
9、nd publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer) . 3. REQUIREMENTS 3.1 Material. Material and parts shall be in accordance 3.1.1 Clean explosive scrap. Clean explosive scr
10、ap with applicable drawings and specifications (see 6.4) . produced in regular operations may be remelted and reused provided that it complies with the requirements for the grade of 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-63261 13 a 7
11、779706 0346774 5 a MIL-C-63261 (AR) high explosive specified; except for form. Scrap from floor sweeping, ventilation and suction apparatus (other than from drilling operations specifically controlled to prevent contamin- ation of explosive) shall not be used (see 6.5). 3.2 Cartridges. The cartridge
12、s shall comply with all requirements specified on Drawing (dwg.) 9289185 and with all requi remen ts spec if i ed in applicable spec if icat ions. 3.3 Cavitation in high explosive charge. 3.3.1 Projected cavities. Cavities having a projected length of 1/32 inch (in.) or less shall be disregarded, Ca
13、vities within requirements specified in Table I, when determined as specified in 4.4.1. the explosive charge shall not exceed the 1 Sum of projected areas of the cavities, ex- cluding pipes, cracks and annular rings, square inch (sq. in.). Projected length of any cavity, excluding pipes, cracks, and
14、 annular rings (in.). Piping cavities, maximum (max.) projected area (sq. in.). projected width (in.). Piping cavities, max. Cracks , max. projected width (in.). Annular rings, max. projected width (in.). TABLE I (Segments see Figure I) A B C 1/4 1/2 *1/64 O 1/4 1/4 1/32 1/3 2 1/3 2 O O 1/4 3/4 - *I
15、f the length of the largest cavity is 1/16 inch or less, the maximum total projected area may be 1/20 square inch. cavitation is defined as cavitation located on or near the vertical center line of the projectile with the longitudinal axis (length) three times or greater than the width. Piping 3 Pro
16、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-63262 23 9999906 0346775 7 = MIL-C-63261 (AR) .r 3.3.2 Surface cavitation. Cavities formed due to chipped or broken explosive from the sidewalls of the fuze well shall not extend in aggregate around
17、more than 1/4 of the circumfer- ence. Cavi.ties in the base of the fuze well shall not be cause for rejection provided the sum of the areas of the cavities is not greater than 80 percent of the area of the fuze well base and no individual point extends moxe than 1/4 inch below the maximum depth of t
18、he fuze well permitted by the drawing, and provided no point extends above the flat surface on which the .inch or. less shall be disregarded in this computation as shall voids within the applicable forward cegion of the fuze well prescribed by dwg. 9211610-2 or dwg. 9278812-2). . . : - liner: would
19、rest. (Cavities having a maximum dimension of 1/32 . C. - . 3.3.3 Porous areas. Porous areas shall be treated as cavities and shall be subject to the restrictions placed upon cavities, except that 80 percent of the projected length and 80 percent. of the projected area shall be considered for accep-
20、 tance purposes. 3.3.4 Cracked charges. Not more than two transverse cracks shall be permitted in any charge, and not more than one transverse crack shail be permitted in Segment A. 3.3.5 Base separation. There shall be no separation 3.4 Proving ground test. The cartridge shall comply with . between
21、 the shell base and explosive charge. the following requirements when tested as specified in 4.4.2. 3.4.1 Premature burst and security of parts. There shall be no premature burst or indication of metal parts failure in the gun bore or in flight before impact. 3.4.2 Safety. There shall be no prematur
22、e burst or indication of metal parts separation of the cartridge in the gun bore or in flight when tested as specified in 4.4.2.1, 4.4.2.2 and 4.4.2.3. 3.4.3 Functioninq/precision 3.4.3.1 Functioning. The fuze shall cause the projectile to function high order. 3.4.3.2 Precision 3.4.3.2.1 Pooled rang
23、e probable error (applicable to M572 Fuze only). The pooled range probable error (RPE) of the ballistic samples fired shall not exceed the appropriate value 1 is ted bel ow: Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i MIL-C-63261 13 m 9999906 0
24、34677b 9 m .r Degrees of freedom 29 28 27 . 26 25 19 18 17 16 15 MIL-C-63261 (AR) Maximum RPE (percent) .327 ,328 ,330 .331 .333 .346 .348 .351 .354 .357 3.4.3.2.2 Horizontal Range. No projectile shall have a horizontal range- less than 95 percent of the mean horizontal range. 3.4.3.3 Muzzle velocit
25、y. The muzzle velocity for the cartridge, fired at 7OoF, shall not be more than 2195 feet per second nor less than 2145 feet per second and the standard deviation of the lot shall not be greater than 8 feet per secon (1.22 meters per second). 3.4.3.4 Pressure. The pressure of the cartridge, fired at
26、 70F, shall not produce a chamber pressure greater than 47,000 psi. 3.5 Radiographic film. Only a film type and vendor as listed herein has been tested and approved by the U.S. Army Armament Research and Development Command for use in radio- graphing this projectile. A substitute item shall not be u
27、sed before prior testing and/or approval by the U.S. Army Armament Research and Development Command, Dover, New Jersey 07801. Eastman Kodak Company 1187 Ridge Road, West Rochester, New York 14650 Film Types: AA, T, or M E. I. DuPont de Nemours and Company Photo Products Department Wilmington, Delawa
28、re 19898 Film Types: NDT-55, NDT-65, or NDT-70 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-63261 13 m 7797706 03Li6777 O m - MIL-C-63261 (AR) 3.6 Workmanship. 3.6.1 Cartridge. All manufacturing processing and assembly operations of the ca
29、rtridge shall be correctly performed in a thoroughly workmanlike manner. free of burrs, chips, dirt cracks, grease, rust and other foreign material. to any of the parts nor shall the parts be contaminated by cleaning agents . Parts shall be The cleaning method shall not be injurious 3,6.1.1 Loading
30、of hiqh explosive. The interior surface of the projectile shall be dry when the high explosive is poured into the projectile. present in the projectile before 1oadin.g or be added to the projectile during pouring or cooling. Solid explosives shall not be 3.6.1.2 Painting and marking. The painting an
31、d marking shall be restored by the assembling contractor on any components furnished to him painted and marked when such painting and marking has been marred or obliterated. 4. QUALIm ASSURANCE PROVISIONS 4.1 Responsiblity for inspection and standard quality assurance provisions. the contract, the p
32、rovisions of MIL-A-48078 shall apply and are here made a part of this detail specification. Unless otherwise specified herein or in 4.2 Classification of inspections. The following type of inspection shall be conducted on this item: a. Quality Conformance Inspection 4.3 Quality conformance inspectio
33、n. 4.3.1 Inspection lot formation. Inspection lots shall comply with the lot formation provisions of MIL-A-48078. addition, inspection lots of cartridges shall contain: In a. Cartridge cases of one lot interfix number from one manufacturer. b. Projectile metal parts of one lot interfix number from o
34、ne manufacturer . C. d. Propelling charges from not more than one lot. Loaded primers of one lot interfix number from one manufacturer . e. Supplementary charges from one manufacturer produced in accordance with the same drawing, same drawing revision, same specification and same specification revis
35、ion. .6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-63261 (AR) f. Fuze well liners from one manufacturer produced in accordance with the sake drawing, same drawing revision, same specification and same specification revision. g. TNT of the
36、same type from one lot interfix number from one manufacturer. 3. Loaded projectile of same weight zone. i. Loaded fuzes from one-lot interfix number from one manufacturer. 4.3.2 Examination. See MIL-A-48078. a. Sampling plans. Unless otherwise specified in the Classificatian of Defects and Test tabl
37、es, sampling plans and procedures for major and minor defects shall be in accordance with MIL-STD-105, Inspection Level II. The contractor may elect to perform 100% inspection with automated equipment in lieu of sampling inspection for defects listed in this specification. In such cases, calibration
38、 plans shall be submitted to the Technical Agency (see 6.15) for approval for each automatic inspection station. The plans shall identify: (i) the frequency (production interval) for validating equipment functioning (2) the methods and procedures for validation including designs of defect standards
39、and (3) a description of material control procedures to be imposed on a product passing through each automated station during the provisions final acceptance will be withheld from material produced during a production interval until satisfactory val.idation of each of the automated stations so contr
40、olled. In the event of a validation fail.ure of any station, the material processed through such station since the last acceptance validation shall be placed in a rejected status pending corrective action. Under certain circumstances, and for sufficient cause, the contractor may request. the governm
41、ents permission to use process controls or process inspections in lieu of the produzt inspections contained herein. In such instances, process control plans containing the aforementioned elements shall- be submitted to the technical agency for approval. c production interval between validations. Und
42、er these i 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-63261 13 7797706 0346777 4 rl b t ri bD a 4 a cd O rl O P k O .rl k a 3, rl P E a, II) II) cd ho a .rl a cd O rl a, rial k- Pd OVI so rJ rl OP, kX pial . rl Ld 1 VI d 3 rl ai 5 VI d 3
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44、d aa b- Fr3 HUI w kl 01 rl ?-do cdl rl XI I b a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-o I J 8 a MIL-C-6326L 13 m 99 x rl P E al II u cd O 4J k O 4 k pi h ri P E al II II cd M) r: d a cd O rl al da dk -Pa oc al4 *T3 rl O kk N NNhl Nhl CJ rnN
45、 v) rnnuirn rnm v) mrn m . . oy, dp6pdp dio# dp dpr)l, o ooc v)m rn mln w w-9 ww a WW o 000 O0 o O0 . I. . *. k O c 3 C 2 U a a4 a O -4 g 5 al rc m al cn i k O rl E, h c, 4 U k al k .ri . k O Fi m c O z M FI N m * . m r- -I .FI zl . c Provided by IHSNot for ResaleNo reproduction or networking permit
46、ted without license from IHS-,-,-MIL-C-63261 13 9 3797706 0346773 7 Y MIL-C-63261 (AR) 4.3.3 Testing 4.3.3.1 Check test for possible deterioration of primer ercussion, M28 (see specification MIL-P-46565). If the total :lasped time between original acceptance of the M28 primer lot and the assembly of
47、 that lot into complete round cartridges exceeds two years, or if the M28 primers have been subjected to adverse conditions, however brief, at any time since previous tests, the applicable lot shall be subjected to and must satisfactorily pass tiie check test for deterioration.specified in Specifica
48、tion MIL-P-46565 immediately before the M28 primer lot is assembled into the cartridges. The test shall be performed by the contractor on assemblies selected by the Government inspector at the facility assembling the complete cartridges (see 6.6). 4.3.3.2 cavitation (see 3.3, except 3.3.2). Cavitati
49、on defects are classified as follows: 3 Critical: 1. Cavitation, (including porous areas), cracks, or 2. Cracks in excess of that permitted in 3.3.4. 3. Base separation in excess of that permitted by 3.3.5. annular rings in Segment A, R, C, or D in excess of that permitted in Table I. The sampling plan and procedures for this test shall be in
