1、MIL-G-5L347E 13 M 77779Ob 0333824 b _ - _ s-37-07 MI L-G-513 493 ( EA) 3 April 1987 SUPERSEDING MIL-G-51349D(EA) 15 November i974 MILITARY SPECIFICATION GRENADE BODY This specification is approved for use w thin the U.S. Army Chemical Research, Development and Engineering Center, Department of the A
2、rmy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers one type of virgin butyl rubber body for a grenade. 2 . APPLICABLE DOCUMENTS 2 .1 Government documents . 2.1.1 Standards. The following standards form a part of t
3、his specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation. STANDARDS FEDERAL FED-STD-595
4、- Colors. FED. TEST METHOD STD. NO. 601 - Rubber: Sampling and Testing. : Beneficial comments (recommendations, additions, deletions) and any perti- : : nent data which may be of use in improving this document should be addressed: : to: Commander, U.S. Army Chemical Research, Development and Enginee
5、ring : : Center, ATTN: SMCCR-SPT-S, Aberdeen Proving Ground, MD 21010-5423 by using: : the self-addressed Standardization Document Improvement Proposal (DD Form : : 1426) appearing at the end of this document or by letter. AMSC NIA FSC i330 DISTRIBUTION STATEMENT A. Approved for public release; dist
6、ribution is unlimited. (2) Primers and/or adhesives proposed for use on inserts and Proposed cure times and temperatures. center seam. Once the candidate formulation has been approved by the Government, the sup- plier shall not make any change in the formulation or in the curing and/or assembly proc
7、esses without obtaining Government approval. 3.1.1.2 Physical properties. Physical properties of the material for the rubber body assembly shall conform to the requirements and tests specified in table I. 3.1.1.3 Color. The color of the material after molding shall be a visual match to either gray,
8、36231, or green, 34558, FED-STD-595, as specified in the contract or order (see 6.2). 3.1.2 Components. All components shall conform to Drawing 13-25-72 and on the subsidiary drawings. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-51347E 13
9、 m 7779706 0333828 3 m - - MIL-G-51349E( EA) 3.2 Assembly. The grenade body shall be assembled as shown on Drawing 13- 2 5-72 3.2.1 Bonding and assembly. The center seam of the body assembly and the bonds of the metal inserts to the upper and lower body hemispheres shall with- stand a pull force of
10、200 pounds minimum when tested in accordance with 4.4.4.3. (Conduct of this test shall be prior to cutting of the emission port hole. ) 3.3 Leakage. When tested in accordance with 4.4.4.2, the body assembly with- out emission port shal not leak, rupture, or separate when subjected to an internal pre
11、ssure of 20 - + 2 psig. 3.4 Emission port release. When tested in accordance with 4.4.4.4, the tape covering the emission port of the grenade body, when configured as shown on Drawing 13-25-72, shall not release when subjected to an internal pressure of 7.5 2 0.5 psig. 3.5 Permeability. The weight l
12、oss of pyrotechnic mixture within the body assembly shall not exceed 2 percent when tested in accordance with 4.3.2.2. 3.6 Preproduction. Prior to the start of regular production, a preproduc- tion sample of bodies and test slabs shall be produced in accordance with this specification for examinatio
13、n and test. 3.7 Workmanship. The body shall be free from imperfections listed in table I of MIL-STD-407 and damage such as rips, tears, or punctures which could -affect its intended use. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the con- tract o
14、r purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements speci- fied herein, unless dis
15、approved by 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 insure that supplies and services con- form to prescribed requirements. Except as otherwise specified 4.1.1 Responsibility for
16、 compliance. All items must meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor
17、of the responsibility of assuring that all products or supplies submitted to the Government for acceptance comply with all require- ments of the contract. mission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. Sampling
18、in quality conformance does not authorize sub- 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-G-51347E 13 7777906 0333827 5 m MIL-G-5 1349 E( EA) 4.1.2 Objective evidence. The supplier shall provide objective evidence acceptable to the contra
19、cting officer that the requirements of 3.1 and section 5 for which specific inspection has not been provided in this specification have been satisfied. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: ( a) (b) Preproduction inspection ( see 4
20、 . 3). Quality conformance inspection ( see 4.4) . 4.3 Preproduction inspection. 4.3.1 Sampling. 4.3.1.1 Test slabs. A quantity of test slabs as spec fied in table II shall be made for testing. The test slabs shall be made from the same batch of rub- ber compound as the body halves, using the same m
21、ethods, materials, equipment, and processes (see Drawing 13-25-72) as will be used during regular production of the body halves. TABLE II. Preproduction sampling and testing Quantity Requirement . Test : : Test slabs in accordance: 3.1.1.1 : with FED. TEST METHOD : Table I : No. 601 : 200% modulus :
22、 4.4.4.i(a) : : Tensile strength : 4.4.4.1(b) : : Elongation : 4.4.4.l(c) : Hardness : 4.4.4.1(d) : : Tear strength : 4.4.4.i(e) : : 75 body assemblies 3.2 As s emb ly 3.3 Leak test : 4.4.4.2 : : 50 body assemblies 3.2.1 : Center seam and : : insert bonds : 4.4.4.3 : : Flammability : 4.4.4.i(f) : :
23、Permeability : 4.3.2.2 : : Low temperature : 4.3.2.1 : : 4 test slabs 3.1.1.1 : 10 body assemblies 3.5 : 4 test slabs 3.1.1.1 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-SL3LI7E 13 = 7797906 O333830 I 4.3.1.2 Body assemblies. A preproduct
24、ion sample of 15 upper and 15 lower body halves from each cavity shall be manufactured using the same methods, mate- rials, equipment, and processes as will be used during regular production. The body halves shall be assembled into body assemblies in accordance with Drawing 13-25-72, with the except
25、ion of the emissions port. tion lot of body assemblies shall be sampled in accordance with table II. other than Government furnished molds are used, the preproduction lot will con- sist of 750 body units representing all mold cavities. The resulting preproduc- If 4.3.2 Tests. 4.3.2,l Low tem erature
26、. The test slabs shall be tested in accordance with ASTM D 746 4.3.2.2 Permeability. The body assembly shall be filled with CS Riot Mix- ture (Drawing 143-14-7) , or Red Smoke Mixture (Drawing 143-3-9). openings shall be closed with plugs (Drawing 13-25-76) and adhesive (Drawing 13-25-70) at both en
27、ds. For control purposes, one grenade body shall be pre- pared in the same manner except that the CS Riot Mixture or Red Smoke Mixture shall be omitted. on a suitable balance to an accuracy of 0.1 gram and placed in an air oven main- tained at a temperature of 155“ + 5F. shall be removed from the ov
28、en, reweighed and the weight changes recorded. The amount of weight loss of CS Riot Mixture or Red Smoke Mixture shall be deter- mined by subtracting the weight loss of the empty control unit from the weight loss of each bonded unit. The threaded All loaded units and the empty control unit shall be
29、weighed After 30 days, the body assemblies - 4.3.3 Acceptance/rejection criteria. The preproduction sample shall comply The accep- with the examinations and tests specified in 4.3 to be acceptable. tance number is zero. contracting officer prior to proceeding with regular production. The contractor
30、shall obtain written approval from the 4.4 Quality conformance inspection. 4.4.1 Lotting. with MIL-8. ent in the rubber formulation from one manufacturer shall be contained in any one lot of assembled bodies. Each lot shall be identified and controlled in accordance However, no more than one interfi
31、x number of each ingredi- 4.4.2 sampling. 4.4.2.1 For examination and nondestructive test. Sampling shall be con- ducted in accordance with MIL-STD-105. 4.4.2.2 For destructive tests. (a) Test slabs. From each batch of raw mix, sufficient test slabs shall be prepared to conduct tests in accordance w
32、ith table I. Specimens shall be tested as received. The low temperature test is not required. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- flIL-G-533V7E 33 = 777770b 0333833 3 MIL-G-5 1349E ( EA) (b) Body assemblies. Sampling shall be conducted
33、 in accordance with MIL-STD-105, level S-4 . (c) Grenade bodies - emission port release. Sampling shall be conducted in accordance with MIL-STD-105, level S-4. 4.4.3 Inspection procedure. 4.4.3.1 For examination and nondestructive test. The sample grenade bodies shall be examined in accordance with
34、the classification of defects and assigned AQLs . 4.4.3.2 For destructive tests. (a) Test slabs. The test slabs shall be tested in accordance with table I. The acceptance number is zero. (b) Body assemblies. The sample body assemblies shall be tested in accordance with 4.4.4.2 and 4.4.4.3 with an AQ
35、L of 1.0 percent defective for each test. (c) Grenade bodies - emission port release. The sample grenade bodies shall be tested in accordance with 4.4.4.4 with an AQL of 1.0 percent defective. 4.4.3.3 Classification of defects. Grenade body (Drawing 13-25-72) . Categories Defects Critical : None def
36、ined Major: AQL 1.0 percent defective 101 Component missing or incorrectly assembled 102 Threads (1-1/4-16-2B) incorrect 103 Rubber cement on interior of body at exhaust port area i04 Port location or orientation incorrect i05 Wall thickness incorrect 106 i07 Depth of fuze cavity incorrect i08 Color
37、 not as specified 109 Workmanship (3.7) Tape missing or incorrectly applied 4.4.4 Tests. 4.4.4.1 Physical properties. The sample test slabs for determining the physical properties of the body assembly material shall be tested as follows: 8 Provided by IHSNot for ResaleNo reproduction or networking p
38、ermitted without license from IHS-,-,-MIL-G-5134E 13 706 0333832 5 MIL-G-5 i3 49E ( EA) (a) Two hundred percent modulus. The slab shall be tested in accordance with method 4131 of FED. TEST WTHOD STD. NO. 601 and the tensile stress at 200% elongation determined and recorded. (b) Tensile strength. Th
39、e slab shall be tested in accordance with method 4111 of FED. TEST METHOD STD. NO. 601 and the tensile strength at rup- ture determined and recorded. (c) Elongation. The slab shall be tested in accordance with method 4121 of FED. TEST METHOD STD. NO. 601 and the elongation at rugture determined and
40、recorded. (d) Hardness, shore A. The slab shall be tested in accordance with method 3021 of FED. TEST METHOD STD. NO. 601 and the hardness measured and recorded . (e) Tear strength, die C. The slab shall be tested in accordance with method 4211 of FED, TEST METHOD STD. NO. 601 and the tear resistanc
41、e deter- mined and recorded. (f) Flammability. The tip of a test slab (2-1/2 by i/4 by 1/8 inches) shall be held horizontally at the apex of a 2-1/2 inch blue inner flame of a Bunsen burner operating in a draft free enclosure. After i5 seconds, remove the slab from the flame, hold horizontally and r
42、ecord the time to self- ext ingui s h. 4.4.4.2 Leakage. The body assembly shall be fitted with a suitable adapter and closure plug and tested as follows: Immerse the body assembly in water at room temperature and subject it to the specified pneumatic pressure (see 3.3) for one minute. Units satisfac
43、torily tested shall be randomly selected for testing in accordance with 4.4.4.3. 4.4.4.3 Center seam and insert bonds. Body grenades shall be tested as fol- lows: Suitable threaded adapters shall be installed into the fuze and filling inserts of the body assembly. Using an appropriate tensile test a
44、pparatus, the assembly shall be tested at a jaw separation rate of 0 inches per minute. Record the load attained and nature of failure at center seam, or separation of either insert from the rubber sphere. 4.4.4.4 Emission port release. The grenade body, when configured as shown on Drawing 13-25-72,
45、 shall be fitted with a suitable adapter and closure plug. The grenade body shall then be subjected to the specified pneumatic pressure (see 3.4) for five seconds. release within this time. The tape covering the emission port shall not 50 PACKAGING 5.1 Unit packing, commercial. The grenade bodies sh
46、all be unit packed to provide adequate protection against damage from the supply source to the first receiving activity for immediate use. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-51347E 13 W 7777706 O333833 7 m MIL-G-5 1349E( EA) 5.2
47、Packing, commercial. A quantity of items, unit packed as specified in 5.1, shall be packed in containers or special packs as applicable, together with interior packaging, constructed as to give assurance that 211 items being shipped will remain in prime condition and adequate to assure safe delivery
48、 to destination without damage to the contents. The containers shall comply with the Uniform Freight Classification, National Motor Freight Classification, or Department of Transportation regulations, as applicable, and be acceptable for shipment at the most favorable rate. rigid to withstand damage
49、 to containers or contents. limitations of the containers shall not exceed the tariff or classification limitations specified therein, and the containers shall be closed and strapped as specified therein. The containers shall be sufficiently The gross weight and size 5.3 Marking. In addition to any special marking required by the contract or purchase order, unit packages and exteric; snipping containers shall be marked in accordance with the
