1、4 3anuary 1982 SUPERSEDING MIL-G-48062B(AR) 5 .May 1981 MILITARY SPECIFICATION GRENAbE, HE, G.P., M46 LOADING AND ASSEMBLING This specificatim is approved for use by the US Army Armament Research and Development Command, and is available for use by all Departnients anG Agencies OE the Department of
2、Defense. 1. SCOPE 1.1 This siecification contains .requirements and provides quality assurance provisions for loading and assembling of one type of 5renac;e designateci as Grenilde, HE, G.P., M46. 2. . APPLICABLE DOCUMENTS 2.1 The follohing documents of the issue in effect on date of irivitation tor
3、 bids or request for proposal, form a part .of this speciiicaticri to the exterit specified herein. SPECIFICATIONS hlL-S-13612 -Steel Plate, brought, Homogen- eous for Ammunition Testing (L/4. to 12 Inches, Incl.) . hIL-E-14970 -Explosive Conposition A5 -Ammunition, Stanard Quality Assurance Provisi
4、ons 8. General Specification. For . . -Grenades; GP8 R42 and M46. Lead Cup Assembly For FSC 1330 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STANDARDS MILITARY MIL-STD-105 -Sampling ProceClUres and Tables for Inspection by Attributes MIL-STD-410
5、-Nondestructive Testing Personnel MIL-STD-1235 -Single and Multi-Level Continuous Qualification and Certification Sampling Procedures and Tables For Inspection by Attributes DRAWINGS (See 6.6) US ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND 9215370 -Grenade, HE, G.P.# M46 I NCPECTION EQUIPMENT DRA
6、WINGS 9224981 -Spin Launcher 9225356 -Control Circuits 9202784 -Cap Obturator i202788 -Operating Ins tr uctic;ns (Copies of specifications, standards, drawings, and publications require6 by suppliers in connection with specific procurement functions should be obtained from the procuring activity or
7、as directed by the contracting officer). Other publications.- The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on the date of invitation for bids or request for proposal shall appli. 2.2 AMERICAN SOCIETY FOR TES
8、TING AND MATERIALS ASTM E 18 -Standard Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials (Application for copies should be addressed to: for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103 ) . American Society 3. REQUIREMENTS 3.1 Material.- Ma
9、terials shall be in accordance with the applicable drawings anil specifications . 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.2 Grenades.-.The grenades shall comply with all requirements specifieci on Dwg. 521537U, all associated drawings and
10、 with all requirements specified in applicable specifications. 3.3 Static penetration tests of body loading assembly.- The steel block used for the static penetration tests shall be either (i) mild steel, type 1018 or 1020, having a Rockwell hardness of B74 minimuni, or (2) steel plate for ammunitio
11、n testing having niaterial and Brinell hardness in accordance with MIL-S-13812. The penetration requirements of 3.3.1 and 3.3.2 shall apply with the test block oriented such that (a) penetration is perpendicular to the direction of grain of the test block and (b) shaped-charge action inipinges upon
12、the rolled scrface which is parallel to the direction in which laminations would be formed during manufacture of the test block material. 3.3.1 Normal standoff.- When tested at normal standoff, the boy loading assembly, (Dwg. 9215372) shall penetrate a minimum of 3.00 inches of mild steel or a minim
13、um of 2.50 inches of ammunition testing plate. 3.3.2 Modified standoff .- When tested at a standoff distance, which is 4 1/4 + 1/16 inches greater than the normal standoff aistarice, the body loading assembly shall penetrate a minimum of . 5.50 inches of mild steel or a minimum of 4.50 inches of amm
14、unition tes ti ng pleite. 3.4 Armin9 test of fuze sliue of grenade.- The grenade fuze, less safety clip and safety pin, shall have the arming screw rotatecc, arid held out of the slide permitting the slide assembly to move to the armed position. The armed position shall be considered to have occurre
15、cc when the distarice from the end of the tunnel of the fuze housing to the crown of the beveled end of the slide assembly measures -410 t .O35 inch. 3.5 Grenade functioning.- The grenade shall not function prematurelk, and shall function high order as intended with evidence of complete shape charge
16、 action . 3.6 Grenade Storage - Grenade boies removed from the barrier b5 packaging and stored as metal parts or partially or full loaded (See 6.8). assemblies, shall not be subjected to a temperature below 50 ti F 5.7 First article inspection.- This specification contains technical provisions for f
17、irst article inspection. Requirements tor the submission of first article samples by the confractor shall be as specified in the contract. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.8 Records of results of contractor-conducted - examinations
18、 and tests.- The contractor shall maintain records of the results of all examinations or tests required by this specification. (See 6.4) 3.9 WorkmanshiE.- All parts and assemblies shall be fabricated, loaded and assembled in a thorough, workmanlike manner. They shall be free of burrs, sharp edges, c
19、racks, dirt, grease, rust and other foreign matter. After loading, all external surfaces, including cavity, shall be free from caked explosive. The cleaning method used shall not be injurious to any parts, nor shall the parts be contaminated by the cleaning agents. Exterior surface coatings shall be
20、 continuous; however, a few light scratches not exposing base material may be permitted. All required marking and stamping shall be neat and sharply defined. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection and standard quality assurance provisions .- Unless otherwise specified here
21、in or in the contract, the provisions of MIL-A-48078 (PA) shall apply and are hereby mdt a part of this detail specification. inspection shall be conductea on this iteri,: 4.2 Classification of inspections.- The following types of a. First Article Inspection b. Quality Conformance inspection 4.3 Fir
22、st article inspection 4.3.1 Submission.- The contractor shall submit a first article as designated by the Contracting Officer for evaluation in accordarAce with the provisions of 4.3.2. The first article sample shall consist of the following items in sample quantities as indicated . Part description
23、 Draw inqs Quant i ty Inert Grenades 9215370 Inert Grenades with live fuze 9215370 Body Fuze Assemblies 9215371 Body Loaing Assemblies 9215372 100 60 60 104 4.3.2 Inspections to be performed.- See MIL-A-48078(PA) and %able 1 herein. 4 b Provided by IHSNot for ResaleNo reproduction or networking perm
24、itted without license from IHS-,-,-2 B ti P P !2 t - 4N WWW . m m mo * W NY em * NN Nnl mm mm rl N NN N m Mm m II III II II I II I O0 O0 O0 O0 rl4 FIFI * *o o O mm rl O0 mm O0 Wm a 5 c N O rl 4 O rl Nu Pa ma, mu 4x Na, m- k h a, 3 5 Provided by IHSNot for ResaleNo reproduction or networking permitte
25、d without license from IHS-,-,-MIL-G-YOb2C 13 7797906 03158b3 3 4.3.3 Re3ectio.n.- See MIL-A-48078(PA). In addition, if any body fuge assembly fails the normal standoff static pene- tration test, ras bf two (2) ur more body fuze assemblies fail the nioaified standoff static penetration test, or if t
26、wo (2) or more samples fail the functioning test, the first article sample shall be reiected. 4.4 Quality conformance inspection 4.4.1 Onspection lot ormation.- Inspection lots shall comply with the lot formation provisions of MIL-A-48078(PA). In additiori, inspection Pots of Grenades shall contain:
27、 a. Fuzes, M223 of one lot interfix number from one b. Body assemblies (Dwg. 9215373) of one lot interfix number c. Cones of one lot interfix number from one manufacturer. d. Tape-stiffener assemblies of one lot interfix number e. Explosive charge material of one lot interfix number f. Lead cup asse
28、mblies from not more than two serial 4.4.2 Examination.- See MIL-A-48078 (PA). manufacturer. from one manufacturer. from one manufacturer. from one manufacturer and no more than two serial lot nunibers. lots from one manufacturer. a. Sampling plans.- Unless otherwise specified in the Classification
29、of Defects and Test Tables, sampling plans for major and minor defects shall be in accordance with MIL-STD-10.5, . Inspection Level II. Continuous sampling in accordance. with MIL-STD-1235 may be uti1ized.if approved by the Procuring Activity. furnished automatic gaging capable of performing 1008ins
30、pection of arIy characteristic shall utilize this capability in accordance with the con tract. b. Automatic gaqin3.- Facilities equippe with Government c. Alternate inspection procedures.- The contractor may propose the use of alternate inspection procedures in lieu of conducting sampling- inspectio
31、n for defecEs listed in this specification. (See paragraph 6.10). , 3 6 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-480b2C 13 6 0b 0335864 5 W rl W m m 4 N cn - h 2 a, (o tD A presence of entrapped powder in body loading assqRib1 .- Yhe s
32、ample assemblies shall be randomly selected from cut OR the : The above is a recommended test procedure. Requests for the use of alternate procedu-res shall be submitted to: Commander, US Army ARRADCOR, ATTN: DRDAR-QAR-Q, Dover, New Jersey 07801, for approval prior to use 4.5.7 Qrenade functionin3.-
33、 The inert grenade, with live fuze and with safety pin (Dwg. 9215255) and safety clip (Dwg. 9215356) removed, shall be fitted with two obturators (Dwg. 9202784) and loaded into an approved launcher. While spinning at a minimum rate of 5000 rpm, (max rate not to exceed 5500 rpm), the grenade shall be
34、 launched to impact upon a target located at a minimum horizontal distance of 100 feet (not to exceeu 150 feet) from the launcher. . The velocity (average) of each grenade at target impact shall be 130 - + 20 feet/second. The target shall be steel and have a thickness of 3/4 + 1/16 inch. This target
35、 shall be firmly supported in a plane perpendicular to the line of fire. For each grenade lot teste, the . contractor shall furnish proof herein to the satisifaction of definite evidence of equipment occur, shall be just cause for sample. of meeting the requirement specified the contracting officer.
36、 Any malfunction which causes a failure to replacement of that shot in the 22 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-Ob2C 33 m 797990b 0335880 3 m , After each grenade is fired, observation shall be made for evidence of fuze arming and
37、 detonator functioning; In addition if it is determined that during the test the detonator did not function, due to improper attitude of the grenade at target impact, the results of that grenade shall be invalidated and a replacement fired. The inert body loading assemblies used for this test shall
38、be suitably marked and randomly introduced into the body fuze assembly machines in production so as to be representative of the grenades for which the acceptance is being determined by this test. If any grenade fuze fails to arm or function high order it shall be classified defective. 4.5.8 Inspecti
39、on of body for cracks.- This inspection shall be performed on each body after loading either visually or with an approved NDT method such as Eddy Current. If the eddy current method is used, all personnel operating and calibrating this equipment shall be qualified and certified in accordance with MI
40、L-STD-410. Inspection shall be performed at each of the following locations. end to the shoulder area. originating from the exterior surface. a. Longitudinal defects in the wall of the body from,the open b. Circumferential defects in the cap area of the body 4.5.8.1 For the purpose of identifying a
41、reject, the following a. Crack - A discontinuity in the material with an orientation, definition of a rejectable crack will apply: depth, and length represented by approved standards. 5. PACKAGING.- (This section not applicable to this specification). 6. NOTES 6.1 Intended use.- The component covere
42、d by this specifi- cation is intended for use with the Projectile, 155MM, HE, M483A1. 6.2 Ordering data.- See MIL-A-48078 (PA). 6.3 Submission of inspection equipme.nt designs for approval.- See MIL-A-48078 (PA). Submit equipment designs as required to: Commander, US Army ARRADCOM, ATTN: DRDAR-QAR-I
43、, Dover, New Jersey 07801. 23 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-6.4 Data requirements.- Data item Gescriptions i.equired for submission under this specificati6r-i are as follows: Paragraph Dta requirement elicable 1I. - 4-5-11 4.5.41 4,
44、5,5, Quglity Inspection DI-R-17 2 1 4.5.7, 4.5.8 Defect Report 6.10 Quality Inspection DI-R-1724 Test Demonstration and Evaluation Report Procedure Report “DI-T-5372 (Tailored) *Delete a, b, c, d of paragraph 1 block 10, DD Form 1664, and substitute contractor designated parameters and limits. The a
45、bove data shall be.forwarued in accorance with the requirements of the contract to Commander, ARRADCOM, ATTN: DRDAR-LAR-QI Dover, NJ 07801. 6.5 Barricades.- Proper barricades shall be utilized for all inspections performed, when applicable. 6.6 Drawings.- Drawings listed in Section 2 of this specif
46、ication under the headings US Army Armament Resear.ch and Development Command (ARRADCOM) may also include drawings prepared by and identified as Edgewood Arsenal, Frankford Arsenal, Rock Island Arsenal or Picatinny Arsenal drawings. Technical data originally prepared by these activities is now under
47、 the cognizance of ARRADCOM. 6.7 Cost of check test.- The contracting officer will arrange tor the contractor to be reimbursed for the expense incurred in the performance of the check test for deterioration of the lead cup assemblies. The tests shall be conducted at Government expense without cost t
48、o the contractor who loaded the lead cup assemblies, or to the contractor assembling the lead cup assemblies into the grenades; and shall not constitute a basis for rejection against either contractor except where deterioration has occurred as a direct result of carelessness in handling, storage, et
49、c.,.permitted while the lead cup assembly lot was under the jurisdiction of either contract or . 6.8 Grenade storaqe.- The elapsed time between the loading and assembling of the grenades and their assembly into the projectile shall be kept to a minimum. 24 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-6.9 Automatic inspec
