1、and M MIL-C-60932 (MU) 15 January 1968 MILITARY SPECIFICATION CARTRIDGE, 105MM, HE, ROCKET ASSISTED, XM548 LOADING, ASSEMBLING AND PACKING 1. SCOPE 1.1 This specification covers the loading, assembling acking for one type of rocket assisted artillery cartridge designated as Cartridge, 105MM, HE, Roc
2、ket Assisted, XM548 (including loading of the warhead and the motor body). 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids, or request for proposal form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-
3、A-2550 - Ammunition and Special Weapons, General SDecification for MIL-1-45607 - Ihspection Equipment, Supply and Maintenance of PURCHASE DESCRIPTIONS PA-PD-2791 - Primer, Percussion, XM108, Loading, Assembling and Packing STANDARDS MILITARY MIL-STD-105 MIL-STD-109 MIL-STD-453 - Inspection, Radiogra
4、phic - Sampling Procedures and Tables for - Quality Assurance Terms and Definitions Inspection by Attributes (ABC-STD-105) FSC: 1315 - FI,; Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-60932 13 W 7777706 0342262 2 W MIL-C-60932 (MU) MIL-STD-
5、1168 - Lot Numbering of Ammunition MIL-STD-1235 - Single and Multilevel Continuous Sampling Procedures and Tables for Inspection by Attributes DRAWINGS ARMY 9209385 - Container, Ammunition, Plastlc, M-, for 9209387 - Crate, Wood, Open, Wirebound for 105MM 9212376 - Cartridge, Semi-Fixed, 105MM, HE,
6、Rocket 9213636 - Container, Ammunition, Fiber, M-, for 9213637 - Box, Packing, Ammunition, for Cartridge, Cartridge, 105MM, HE, RAP, XM548 (Howitzer) Ammunition, in Plastic Container XM578 Assisted, XM548 for Cannon M2A2, MlO3 or 1.1137 Cartridge, 105MM, HE, RAP, XM548 105MM, HE, RAP, XM548 PUBLICAT
7、IONS ARMY ET-9212376 - Equipment Tabulation (Copies of specifications, standards, drawings and 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.
8、-Material and parts shall be in accordance 3.1.1 with applicable drawings and specifications. Clean explosive scrap.-Clean explosive scrap produced in regular operations may be remelted and reused provided that it complies with the requirements for the grade of high explosive specified, except for f
9、orm. lation and suction apparatus (other than from drilling operations specifically controlled to prevent contamination of explosive) shall not be used (see 6.6). all requirements specified on Drawing (dwg.) 9212376 and with requirements specified in applicable specifications. Scrap from floor sweep
10、ings, venti- 3.2 Loaded Cartridge.-The loaded cartridge shall comply with 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-60732 13 7777706 03422b3 4 MIL-C-60932 (MU) 3.3 Cavitation in high explosive charge 3.3.1 Cracks and projected cavities.
11、-Cavities and cracks within the explosive charge shall not exceed the requirements specified in Table I when determined in accordance with 4.3.1. Cavities having a maximum projected length of 1/32 inch or less shall be disregarded. TABLE I Segments (see Figure 1) A* B C D Sum of projected areas of t
12、he cavities, excluding pipes, cracks and annular Projected length of any cavity excluding pipes cracks and annular rings (in.) l/U 1/2 1/2 314 Piping cavities, max., projected area (sq. in.) O 1/4 1/2 O ringskquare inch (sq. in.) 1/64* 1/4 1/2 1/2 Piping cavities, max., projected width (in.) O 1/4 1
13、/4 O Cracks, max., projected width (in.) 1/32 1/32 1/32 - Annular rings, max., projected width (in.) O O 1/4 O *Pertains to both composition B and filler E * If the length of the largest cavity is 1/16 inch or less, the maximum total projected area may be 1/20 square inch. 3 Provided by IHSNot for R
14、esaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-60732 13 7777706 0342264 6 = - - MIL-C-60932 (MU) 3.3.2 Porous areas.-Porous areas shall be treated as cavities and shall be subjected to the restriction placed upon cavities, except that 80 percent of the projected leng
15、th and 80 percent of the projected area shall be considered for .acceptance purposes. 3.3.3 Cracked charges,-Not more than four transverse cracks shall be permitted in any charge and not more than one transverse crack shall be permitted in Segment A. Surface cavitation.-Cavities in Segment D of Figu
16、re 1 formed due to chipped or broken explosive from the sidewalls of the fuze well shall not extend in aggregate around more than 1/4 of the circumference. The max. dimension of any visible cavity in the base of the fuze well shall not exceed 1/4 1nch.in any direction and the total area of all such
17、cavities shall not exceed 80 percent of the area of the fuze well base. -No individual point of explsive shall extend above the flat surface on which the liner would rest. (Cavities having a maximum dimension of 1/32 inch or less shall be disregarded in this computation). Disregard any cavitation in
18、 fuze well above Segment D. 3.3.5 Base separation.-There shall be no separation greater than 1/32 of an inch between the shell base and the filler E and likewise between the filler E and the explosive charge. 3.3.4 3.4 Loading of high explosive 3.4.1 Mating surfaces.-The mating surfaces of threads s
19、hall be free of caked explosive and all threads shall be free of foreign material. acetone or methylene chloride shall be used. Care shall be taken to prevent the chemical cleaner from coming into contact with the charge and becoming entrapped in the warhead, present in the warhead before loading or
20、 be added to the shell during pouring or cooling. Coating.-Warhead having the interior wall imperfectly coated shall not be loaded. The interior surface of the warhead shall be dry when the high explosive is poured into the warhead. withstand a minimum disassembly torque of 200 foot pounds when test
21、ed as specified In 4.3.4. If a chemical cleaner is required, 3.4.2 Solid explosives.-Solid explosives shall not be 3.4.3 . . 3.5 Warhead . disassembly torque.-The Warhead shall 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.6 Primer.-The primer
22、shall have the required number and location of flash holed as specified on the appropriate primer drawing. 3.7 Waterproofness (applicable to plastic containers).- The plastic container shall be waterproof as evidenced by abs of air leakage when tested as specified in 4.3*2* n 3.8 Proving ground test
23、.-The cartridge shall comply with the following requirements when tested as specified in 4.3.3, 3.8.1 Functioning 3.8.1,l Failure to fire.-The cartridge shall not fail to fire 3.8.1.2 Rocket Motor Functioning,-When the rocket selector cap is removed, the rocket shall fire in flight. When the rocket
24、selector cap is leftin place (set to remain inert) the rocket shall not fire. 3.8.1.3 Impact functioning.-The cartridge shall function 3.8,1.4 Horizontal range 3.8.1.4.1 The mean corrected horizontal range shall be high order on impact. within 80 meters of that predicted by the applicable range tabl
25、e and the standard deviation shall not be greater than 80 meters, 3,8.1.4.2 No cartridge shall have a horizontal range less 3.8.1.4.3 Muzzle velocity,-The corrected muzzle velocity than 95 percent of the mean horizontal range. of the projectile conditioned at 70 degrees Fahrenheit shall not be more
26、than i825 feet per second nor less than 1775 feet per second and the standard deviation of the lot shall not be greater than 8 feet per second. 3.8.1.5 Premature burst.-There shall be no premature burst. 3.8.2 Safety.-There shall be no premature burst, rocket motor malfunctioning or indication of me
27、tal parts separation in the gun bore or in flight when fired at any service charge or with propellant adjusted to produce 37,000 psi chamber pressure in a M103 Or Mi37 cannon, shall have a horizontal range less than 95 percent of the mean horizontal range of its group. No cartridge fired In the safe
28、ty test 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-60932 13 m 9999906 03q22bb - T MIL-C-60932 (rm) 3.9 Workmanship 3.9.1 Cartridge.-All manufacturing, processing and assembly operations of the cartridge shall be correctly performed in a
29、thorough workmanlike manner. Parts shall be free of burrs, chips, dirt, grease, rust, corrosion products and other foreign material. The cleaning method shall not be injurious to any of the parts nor shall the parts be contaminated by the cleaning agent. Care shall be exercised at all times so that
30、the rotating band of each motor body will not be damaged by being nicked or burred, 4. QUALITY ASSURANCE PROVISIONS 4,i General quality assurance provisions.-Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements a
31、s specified herein. may utilize his own facilities or any commercial laboratory accept- able to the Government. The Government 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 pr
32、escribed requirements. Reference shall be made to Standard MIL-STD-109 in order to define terms used herein, The provisions of Specification MIL-A-2550 shall apply. Submission of product.-At the time the completed lot of product is submitted to the Government for acceptance, the contractor shall sup
33、ply the following information accompanied by a certificate which attests that the information provided is correct and applicable to the product being submitted: a. A statement that the lot complies with all of the quality assurance provisions specified within this specification. b. Number of units o
34、f product inspected. c. Results obtained, by defect code, for all inspections performed. d. Drawing, specification number and date, together with an identification and date of changes. e. Certificates of conformance on all material purchased by the contractor when such material is controlled by Gove
35、rnment or commercial specifications referenced in any of the contractual documents. Except as otherwise specified, the supplier 4.1,i f. Number of items in the lot. g. Date submitted. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-60932 13 M
36、 9999906 0342267 L M MIL-C-60932 (MU) The certificate shall be signed by a responsible agent of the certifying organization. The initial certificate submitted shall be substantiated by evidence of the agents authority to bind his principal. Substantiation of the agents authority will not be required
37、 with subsequent certificates unless, during the course of the contract, this authority is vested in another agent of the certifying organization. 4.2 Inspection providions 4.2.1 Lot formation. -The term “lot II as used throughout this specification refers to an inspection lot, which is defined as a
38、n essentially homoqeneous collection of units of product from which a representative sample is drawn and inspected to determine conformance of the lot with applicable requirements. The sample selected shall renresent only that quantity of units from which the sample was drawn and shall not be constr
39、ued to represent any prior or subseciuent quantities presented for in- spection. Homo.qeneitg shall be considered to exist provided the lot has been produced by one manufacturer, in one unchanged process, in accordance with the same drawinp;, same drawing re- vision, same specification and sane spec
40、ification revision. Changes to the process, specification, or drawing not affecting safety, nerformnnce, interchangeability, or storage, as determined by the Government, shall not be deemed to alter the homogeneity of the lot. Inspection lots shall comply with MIL-STD-105. Unless otherwise approved
41、by the contracting officer the inspection lot size of end items deliverable under the contract shall be not less than the smallest weekly estimate of quantities contractually scheduled for production during the contract period nor more than the larqest monthly quantity contractually scheduled for de
42、livery during the contract period. Inspection lots for components or subassemblies, other than the items of delivery, shall be hono- geneous aiid of a size mutually convenient to both the contractor and the Governnent insneetor. Lot numbering, as required, shzll be In accordance with MIL-STD-1168. E
43、ach lot of loaded complete r0ur.d cartridges shall contain: one manufacturer. f:norn one manufacturer. a. Warhead metal parts of one lot interfix number from b. Xotor body metal parts of one lot interfix number 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fr
44、om IHS-,-,-MIL-C-60932 (MU) c. Explosive charge from not more than 2 lots from d. Supplementary charges of one lot number from e. Motor body propellant grains of one lot number from f. Loaded primers of one lot interfix number from one g. Cartridge cases of one lot interfix number from one h. Propel
45、ling charges from one lot from one manufacturer. i. Delay assemblies of one lot interfix number from one manufacturer. one manufacturer. one manufacturer, manufacturer. manufacturer. one manufacturer. 4.2.2 Examination.-Inspection for Critical defects (and Major defects, when so specified,) shall be
46、 100 percent. plans and procedures for Major and Minor defects shall be in accordance with MIL-STD-105 except that continuous samDling plans in accordance with MIL-STD-1235 may be used if approved by the procuring activity. Also, at the option of the procuring activity, AQLs and sampling plans may b
47、e applied to individual characteristics listed using an AQL of 0.65 percent for each Minor defect and an AQL of 0.40 percent for each Major defect, except where 100 percent inspection is specified. Equipment necessary for the performance of the inspections listed shall be in accordance with 4.2.4. S
48、ampling 4.2.2.1 -Warhead,prior to installing insulation (see dwg. 9212392 covering a detail of dwg, 9212376). Categories Defects Method .of Code No. Inspection (see 6.2) Critical: None defined Ma j or : AQL 0.40 percent 101. Warhead base improperly finished . Visual O1001 102. Warhead base not clean
49、 or dry Visual 01002 201. Evidence of poor workmanship Minor: AQL 0.65 Percent (see 3.9) Visual 01003 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-60932 (MU) 4.2.2.2 Warhead,after insulation assembly (see dwg, 9212392 Categories Defects Method of Code No. covering a detail of dwg. 9212376). Inspection Critical: None defined Major:
