1、I MIL-B-63469 33 7777706 0350763 2 9 $-a 7-69 MIL-B-63469 (AR) 2 August 1982 M I L I TARY SPEC I FI CAT I ON BODY ASSE2BLlXS, GENERAL PuRposE GEElJADF, M73 AND M75 (PRACTICE) 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 This specification covers the quality assurance provisions and special requirements not covered by the drawings for parts and assembly of the metal parts for the Body Assemblies for the M73 and M75 (Practice) General Purpose Gr
3、enade. 2. APPLICABLE DOCUMENTS 2.1 Government documents. -I- 2.1.1 SDecif ications and standards. Unless otherwise - specified (see 6.21, the following specifications and standards of - the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specifi
4、ed in the solicitation, form a part of this specification to the extent specified herein. SPEC IF1 CATION S M IL I TA3Y MIL-A-48078 Ammunition, Standard Quality Assurance Provisions, General Specification for STANDARDS MIL-STD-105 Sampling Procedures and Tables for MIL-STD- 1167 Ammunition Data Card
5、 I nspec ti on by At tr i but es E P FSC 1330 I I Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improvin this document-should be addressed to: Commander, US Army Armament ffesearch and Develo ment Command, Attn. DRDAR-QA, Dover, New Jersey
6、07801 b using te self-addressed Standardization Document Improvement Proposal $D Form 1426) appearing at the end of this document or by letter, i. THIS DOCUMENT CONTAINS -a . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-63Lib9 13 M 7779906 0
7、3509b2 Lt 3 MIL-B-63469 (AR) 2.1.2 Other government documents, drawings and publications. - The following other Government documents , drawings and publications form a part of this specification to the extent specified herein. DRAWINGS U .S . ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND (ARRADCOM)
8、 9334115 9335701 9335708 9342880 9352399 Body Assembly, M75 Body Assembly, M73 Box, Fiber, Inner Box, Fiber, Outer Box, Fiber, Outer (Copies of specifications, standards, handbooks, drawings, and publications required by manufacturers in connection with specific acquisition functions should be obtai
9、ned from the contracting activity or as directed by the contracting officer .) 2.1.3 -I_- Order of Eecedence. In the event of a conflict between the text of thz specification and the references cited herein, the text of this skecif ication shall take precedence. 3. REQUIREMENTS 3.1 Materials. Materi
10、als shall be in accordance with applicable drawings, specifications and standards. 3.2 Components I-II- and assembly. The parts and assembly shall comply with all requirements specified on Drawings (Dwg.) 9335701, 9334115 all associated drawings, and all requirements specified in applicable specific
11、ations and standards, unless otherwise spec if i ed . 3.3 Welded tubing. The welded body tubing shall be tested for weld integrity at tube fabrication in accordance with .drawing 934269 3. -I- 3.4 First article inspection. This specification contains -l-_l- technical provisions for first article ins
12、pection. Requirements . for the submission of first article samples by the contractor shall be as specified in the contract. 3.5 Workmanship. All parts and assemblies shall be free 8f - burrs, chips, sharp edges, cracks, unblended radii, surface blisters, excess flash, dirt, grease, rust, corrosion
13、products and other foreign matter. The cleaning method used shall not be injurious to any part, nor shall the parts be contaminated by the 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-63qb9 13 9777706 0350763 6 I- MIL-B-63469 (AR) cleaning
14、 agents. Exterior surface coatings shall be continuous except for minor scratches not exposing base material. The assembly operations shall be performed in a thorough, workmanlike manner consistent with the best practices of the industry. All required markings shall be neat and sharply defined. 4. Q
15、UALITY ASSURANCE PROVISIONS 4.1 Responsibilityor inspection and, standard quality assurance provisions. Unless otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract, the
16、 contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed
17、 necessary to assure supplies and services conform to prescribed requirements. Unless otherwise specified herein or in the contract, the provisions of MIL-A-48078 shall apply and are hereby made a part of this detail specification. 4.2 Classification of inspections. - The following types of inspecti
18、on shallbe conducted on this item: a. First Article Inspection b. Quality Conformance Inspection 4.3 First article inspection. - 4.3.1 -_I Submission. The contractor shall submit a first article sample as designated by the contracting officer for evaluation in accordance with the provisions of 4.3.2
19、. The first article sample shall consist of the following items in sample quantities as indicated. Quantity Part Description - - Drawing - Ring, Retaining 9335703 Cone 9335702 Body, M73 (without protective finish) 9335700 Cap 9335705 Ring , Filler 9335707 Body Assembly, M73 9335701 Body, M75 (withou
20、t protective finish) 9334104 Body assembly , M75 9334115 3 15 15 15 15 15 32 15 32 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-b3469 13 m 3797906 0350964 m MIL-B-63469 (AR) Two (2) samples of embossed stock each equivalent in length to the
21、circumference of the embossing roll. Two (2) samples of welded tube stock approximately 6 inches long. 4.3.2 - Inspections - to be performed. See MIL-A-48078 and Table I specified herein. 4.3.3 - Rejection. See MIL-A-48078. , D 4 t i “4. Provided by IHSNot for ResaleNo reproduction or networking per
22、mitted without license from IHS-,-,-MIL-B-63967 13 E 777770b 0350765 T M O -4 ci u al 111 C H al ri -u ci -4 2 ci u1 5 O a 5 rl rl E 8 4 cn c -FI 111 a al c ci w O al u c al each specimen shall be identified with an index position on the tool and for the direction of the roll The specimen shall also
23、 be identified as being from the beginning or I end of the coil. Fifteen (15) measurements shall be taken on each sample specimen for the .O90 dimension and for the .13 dimension. There shall be three (3) points of measurement across the width of the specimen at five (5) places along the length. The
24、 spacing of the readings shall be approximately uniform, one (i) measurement for each characteristic shall be performed at each of the fifteen (15) measuring points on the specimen. An average value for each specimen shall be computed for each characteristic from the measurements obtained. In additi
25、on, measurements for the .232, 600 and .003R. dimensions shall be determined on the specimen from each new, repaired or adjusted rolling tool entering the production line. If the average of the fifteen (15) measurements for the .O90 and .13 dimensions fails to comply, or if the direction of rolling
26、does not comply with the requirement specified on the applicable drawing, the coil, or portion thereof, from which the sample was taken shall be rejected. Corrective action shall be performed prior to further production. I8 Provided by IHSNot for ResaleNo reproduction or networking permitted without
27、 license from IHS-,-,-I MIL-B-634b9 lr3 m 999990b 0350979 T m MIL-B-63469 (AR) 4.5.2 Flattening test of tubing weld seam. A minimum of one (1) section of tube four (4) to six (6) inches in length from each 2,500 feet of tubing welded from the same heat of steel shall be flattened between parallel pl
28、ates with the weld at the point of maximum bending until opposite walls of the tubing meet. No opening in the weld shall take place until the distance between the plates is less than two thirds of the original outside diameter of the tubing. No cracks or breaks in the metal other than in the weld sh
29、all occur until the distance between the plates is less than one third of the original outside diameter of the tubing, but in no case less than five times the thickness of the tubing wall. Evidence of lamination or burnt material shall not develop during the flattening process, and the weld shall no
30、t show injurious defects. If a defect is found, the quantity represented by the sample shall be rejected. NOTE: Tubing having a carbon content over 0.20 percent may be normalized prior to testing. 4.5.3 Flaring test of tubing weld seam. A minimum of one (i) section of tube, approximately four (4) in
31、ches in length from each 2,500 feet of tubing welded from the same heat of steel shall stand being flared with a tool having a 60 degree included angle until the tube at the mouth of th.e flare has been expanded 15 percent of the inside diameter, without cracking or showing flaws. If a defect is fou
32、nd, the quantity represented by the sample shall be rejected. NOTE: Tubing having a carbon content over 0.20 percent may be normalized prior to testing. 4.5.4 Hydrostatic test of tubing. A hydrostatic test shall be performed on all tubes. The tubes shall be placed in an approved fixture with 1,000 p
33、si of hydrostatic pressure applied. If any leakage is observed, the tube shall be rejected and removed from the lot. 4.5.5 Leak test of ring and cone assembly with body. Each body assembly shall be placed in an approved fixture and the internal air pressure specified on Dwg. 9335701 shall be applied
34、. Any body assembly that fails the applicable acceptance criteria shall be rejected and removed from the lot. 19 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-b3LIbS 13 W 7977706 0350780 b W MIL-B-63469 (AR) 4.5.6 Cap separation test. Thirty-
35、two (32) body assemblies shall be selected from each lot and subjected to this test. Apply a load perpendicular to the cap and in such a direction as to test the strength of the assembly of the cap to the cone. If any body assembly fails to comply with the requirement specified on drawing 9335704, t
36、he lot represented by the sample shall be rejected. 4.5.7 - Pushout force of cone to retaining ring. After completion of test 4.5.6, subject the same body assemblies to this test. Apply a load circumferentially to the cone and in such a direction as to test the strength of the assembly of the cone t
37、o the rest of If any body assembly fails to comply with the requirement specified on drawing 9335706, the lot represented by the sample shall be rejected. body. After completion of test 4.5.7 where applicable, subject the same body assemblies to this test, as described on the drawing. If any body as
38、sembly fails to comply with the requirement, the lot represented by the sample shall be rejected. 4.5.8 Pushout force of retaining ring and cone assembly with - _- 5. PACKAGING 5.1 Preservation I- and packaging. - The body assemblies shall be preserved and packaged in accordance with Dwg. 9335708, D
39、wg. 9342880, and Dwg. 9352399 where applicable. specified in 5.1.1, shall be packed for shipment in accordance with Dwg. 9335708, Dwg. 9342880, and Dwg. 9352399 where applicable. 5.2 - Packing. The body assemblies, preserved and packaged as 5.3 Marking. - Marking shall be in accordance with Dwg. 933
40、5708, Dwg. 9342880, and Dwg. 9352399 where applicable. 5.4 Shipping. When components from more than one lot are shipped as a carload, each lot shall be kept separate and the division between lots clearly indicated to prevent mixing of the lots in transit. 5.5 - Ammunition data cards. Data card infor
41、mation shall be as specified in MIL-STD-1167. 20 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-u! MIL-E-63469 33 9999906 0350983 8 H MIL-B-63469 (AR) 6. NOTES 6.1 -_- Intended use. The M73 body assembly is intended for use in the M73 General Purpos
42、e Grenade and M75 Body Assembly for use in the M75 Practice Grenade. 6.2 Ordering - data. See MIL-A-48078. 6.3 Submission of inspection equiEment - - for desan - agproval. -_l_-l_- - See 6.2.3 o MIL-A-48078. Submit equipment designs as required to Commander, US Army Armament Research and Development
43、 Command, ATTN: DRDAR-QAF-I, Dover, NJ 07801. 6.4 -_ First article. When a first article is required for inspection and approval, see 3.4 and 4.3. 6.5 Source control and gecification control drawings. Certificate of conformance from the. supplier certifying that the item complies with the drawing requirements shall be provided to the government representative. pl-l-I - Cu stod i an : Army-AR Preparing activity: Army-AR (Project 1330-A156) *U.S. GOVERNMENT PRINTINGOFFICE: 1982-505-022/4178 21 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
