1、 I MILITARY SPECIFICATION . LAUNCHER AND GRENADES, SMOKE: HC AND WP, M176; COMPONENTS FOR 3-31-15. MI L -L - 5 1 2 9 35 ( .,u ) . IO Junc i970 SUPERSEDING -._- I-_ MIL-L-57 293A(blU) 29 May 1968 1. SCOPE 1.1 This specification covers the components of the Ml76 launcher, 2. APPLICABLE DOCUWENTS 2.1 G
2、oyernment documents. The following documents of the issue in -.-.- , effect on date of invitation for bias or request for proposal, form a part of this- specification ta the extent specified herein: -. STANDARDS MILITARY MIL-STD-105 - MIL-STD-129 - MIL-STD-1168 - DRANINGS . . US ARMY MUNITIONS Sampl
3、ing Procedures and Tables for Inspection Marking for Shipment and Storage. Lot Numbering of Amuni ti on. by Attributes. COMPAND EDGEWOOD ARSENAL DLl3-12-7 - Launcher and Grenades, Smoke: HC and WP, M176, (Copies of specifications standards, drawings and publications required by suppliers in connecti
4、on with specific procurement functions should be obtained from the procuring activity or as directed by the contracting off i Cer. ). 2.2 Other publications. The following document foms a part of this specifiKtTon to the extent specifiea herein. the issue in effect on ciate of invitation for bids or
5、 request for pro- posal shall apply. Unless otherwise indicated, FSC 1330 - - . THIS DOCUMENT CONTAINS f PAGES. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-51293B( NU) UNIFORM CLASSI FICATION COMiI.IITTEE Unifom Freight Classification (Appl
6、ication for copies of these ratings, rules and regulations should be addressed to Uniform Classification Gomittee, 202 Union Stat.jon, 516 West Jackson Boulevard, Chicacjo, Illinois 60606.) AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM Standards D883-65aT - Tentative Nomenclature Re1 ati ng to P1
7、as tics. , (Application for copies should be addressed to the American Society for Testin and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103.7 3, REQUIREMENTS 3.1 Materials, All materials cited on Drawing DL13-12-1 and on the- subsidiary drawings shall conform to the specification the
8、reon or to the specific characteristics set forth on the drawings. All plastic material (glass fiber reinforced polypropylene) shall contain 40 + 5 percent glass fiber by weight. 3.2 Tube burst pressure. The tube (Drawing D13-12-2) shall with- stand an internal hydrostatic pressure of 350 + 25 pound
9、s per square inch gage (psig) at a distance of 2 + 1/16 inch from the inside surface of the base when tested in accordance with 4.4.4.1. 3.3 Cap leakage. The assembled and sealed cap shall not leak nor become distorted when subjected to an internal air pressure of 5.5 + 0.5 psig in accordance with 4
10、.4.4.2. - . -. 3,4 Ca hardness. The final material condition of the cap body shall be temper + O wit a maximum hardness limit of 40 when tested in accordance with 4.4.4.3. 3.5 Preproduction. Prior to the start of regular production, a pre- production sample of components shall be produced in accorda
11、nce with this specification for examination and test (see 4.3). of no l*O0 pounds (lb) nor greater than 1,600 lb to push out the cap end disc, when tested in accordance with 4.4.4.4. and dam4 breaks and cracks) that would adversely affect normal assembly and subsequent functioning. 3.6 Ca ush-out, T
12、he assembled and sealed cap shall require a force 3.7 Workmanshi . The components shall be free from foreign matter 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-L-512938 13 779770b 0333673 2 a- - MIL-L-51293B( MU) 4. QUALITY ASSURANCE PROVI
13、SIONS 4.1 Responsibility for inspection. 4.1.1 Suppliers responsibil these tubes shall not be used for production purposes. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-L-51293B 13 m 9999906 0333692 9- 1 4.3.3 Acceptance/rejection - criteri
14、a. The preproduction sample shall comply with the examinations ana tests specified herein to be acceptable. The supplier shall obtain written approval from the- contracting officer prior to proceeding with regular production. 4.4 Quality conformance inspection. 4.4.1 Lotting. Each lot shall be ident
15、ified and controlled in accord- ance with MIL-STD-1168, no more than one interfix number from one manufacturer of the following is permitted: Contained in anyone interfix number of launchers, (a) One batch (see 6.2) of raw material. 4,4.2 ,Sampling. 4.4.2.1 For examination. At the beginning and at t
16、he completion of production, one or more components shall be taken from each die roducng the end item, and from each mold cavity for examination. shall beYxke9 to requalify the mold. During production, the quantity and frequency &these examinations shall be at the discretion of the- supplier, but sh
17、all%Pndess than one component from each mold cavity in every six hours of productton, l L n-3xeevent of a failure or repair to the mold, one or more components 4.4.2.2 For destructive tests (tube pressure, cap hardness, and cap ush-out) . Sampling shall be conducted in accordance wihLSTD-lOy h4, usi
18、ng an AQL of 2.5 for each test. 4.4.3 Inspection procedure. ?.-4,3.1 For examination. Sample components shall be examined in . accordance-with the list of defects. If one or more than one com- _ ponent fails to-comply with the applicable requirement, the components r- represented shall be Fejecxed b
19、ack to the last acceptable examination. 4.4.3.2 For tests. (a) Nondestructive (cap leakage). Each cap in the lot shall - be tested in accordance with 4.4.4.2. (b) I_ Destructive (tube pressure, cap hardness and-cap psh- out) 4.4.4.3, and 4.4.4.4 and MIL-STD-105, using an AQL of 2.5 percent de- Sampl
20、e caps and tubes shall be tested in accordance with 4.4.4-2 y - fective for each test. . 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.-.-a- MIL-L-51293B 13 777990b O333693 b i-.- - . -. 1 - . -. 4.4.3.3 List of defects. (a) Tube (Dwg 013-12-2).
21、 *l. Cracks 2. Thread missing or incorrect 3. Eccentricity between O.D. of boss and pitch diameter of thread excessi ve 4. Eccentricity between O.D. and pitch diameter of thread excessive 5. Wall thickness (2 places) minimum 6. Flatness plane on 1.0. excessive 7. Taper on I .D. incorrect 8. Inside d
22、epth of tube incorrect 9. Cartridge hole diameter incorrect 10. Groove incorrect, or incorrectly located 11. Diniension 0.359 incorrect 12. blorkmanship (3.7) *Defined in ASTM designation 0883-65aT. (b) Holder (Dwg D13-12-3). 1. Grenade cradle I .D. incorrect 2. 3. Locating hole spacing incorrect 4.
23、 Overall length incorrect 5. 6. Workmansh i p (3.7) Lengtn of grenade cradle incorrect Eccentricity among O.D., undercut and extreme I di ameter of cavity section incorrect (c) Cover (Dwg D13-12-4). 1. 1.0. incorrect 2. Locating pin spacing incorrect 3. Overall length incorrect 4. Cutout location in
24、correct 5. Locating tab incorrect 6. Workmanshi p (3.7) (d) Spacer (Dwg 813-12-5). 1. 0.0. incorrect 2. Thickness incorrect -3. Location of riser incorrect 4. Overal height 0.81 incorrect 5. Morkmanshi p (3.7) 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license fro
25、m IHS-,-,-MIL-L-512936( l4U) 4.4.3.3 List. of defects (continued). (e) Retainer (Dwg (33-12-6). 1 , Thread incorrect 2. excess i ve 3. Counterbore diameter incorrect 4. Counterbore depth incorrect 5, Length incorrect 6. Wrench pocket incorrect 7. Wrench pocket location incorrect 8. Radius missing 9.
26、 Workmanshi p (3.7) Eccentricity among thread, counterbore and hol e (f) Cap (Dwg C13-12-7). 1. 2, . 3. 4. - 5. 6. 7. 8. 9 10. 11. 12. 13. 14. 15. Min I.D. incorrect Max Z.D. incorrect I.D. at offset incorrect Max diameter over sealed end incorrect Dimension formed over end (-2) incorrect (0,070) mi
27、n Dimension 2.00 incorrect Protective coating, and sealer missing or incorrectly appl i ed Nidth of groove incorrect Diameter of end (-2) incorrect Depth of groove incorrect Height of bead incorrect Formed over end overlapping bead Length of skirt incorrect Workmanshi p (3.7) Temper incorrect .- (9)
28、 Cap (wg C13-12-17), alternate desi, 1. Min I.D. incorrect 2. Max I .D. incorrect 3, I.D. at offset incorrect 4. Dimension 0.156 incorrect 5. Dimension 1.812 incorrect 6. Dimension 0.410 incorrect 7. Angle 45 degree incorrect 8. Protective coating and sealer missing or incorrectly ap lied 9. Workman
29、ship (3.7 ! 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.4.3.3 List of defects (continued). (h) Seal (Dwg 813-12-10). 1. Width incorrect 2. 1.0. incorrect 3, Thickness incorrect .4.4.4 Tests. 4.4.4.1 Tube pressure. The tube shall be placed in
30、a test fixture so that the tube is sealed at a distance of 2 + 1/16 inches from the inside surface of the base. The internal sectTon of the tube shall then be subjected to the specified pressure at a uniform rate within a period of 5 seconds. Test shall be conducted at ambient temperature. These tub
31、es shall be identified as test items and shall not be used for production purposes. . 4.4.4.2 Ca leaka e. The assembled and sealed cap shall be placed in a test fixture _E_79_ see 6.3) and subjected to the specified pressure for a period of 15 to 20 seconds. Visual observation shall start when the g
32、age reaches the required pressure and continues through the entire time cycle. Upon completion of the test, the caps shall be thoroughly cleaned and dried. 4.4,4,3 Hardness. The hardness of the cap body shall be determined by using a superficial hardness tester with a 15-T scale, 1/16 inch ball and
33、a 15-kilogram load. A minimum of three readings shall be taken at various points within 1/4 inch of the edge enveloping the disc. This procedure shall be repeated at two additional locations on the cap body - on the skirt and approximately equidistent be- tween top and bottom. 4,4.4.4 Cap push-out t
34、est. The cap shall be placed in a test fixture and subjected to the required force. The force shall be applied to a I .minimum diameter of 3.05 inches to the inside surface of the disc, 5. PREPARATION FOR DELIVERY 5.1 Packaging, level C. The components shall be packaoed to provide adequate protectio
35、n against corrosion, deterioration and damaae from the supply source to the first receiving activity for immediate use or for storage under control led humidity conditions. . 5.2 Packing, level C. The components, packaged as specified in 5. shall bk packed to inxre carrier acceptance and safe delive
36、ry to the 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-51273B 13 777770b 0333b76 1 - - a- _p first domestic destination. Containers shall be ir! compliance with Uniform Freight Classification rules or the regulations of other cornnon carri
37、ers applicable to the mode of transportation, contract or order, unit packages, intermediate packages and shipping containers shall be marked in accordance with MIL-STD-129. 5.3 MI. In addition to any special marking required by tne 6, NOTES 6.1 Ordering data. Procurement documents should specify th
38、e following: (a) Title, number, and date of this specification. (b) Preproduction. (i) Time allowed for suppliers submission of samples for Government test and evaluation after award of contract. (2) Destination of samples when testing is performed by the Government. (3) Packing, shipping and markin
39、g instructions when applicable. (4) Time required for the Government to notify the supplier whether to proceed with production. 6.2. Batch. A batch is defined as that quantity of material which has been manufactured by some chemical process and subjected to some physical mixing operation intended to
40、 make the final product substantially uniform. 6.3 Cap leak test fixture. The test fixture will be Government fur- nished equipment (GFE). Custodian : Army - MU Preparing activity: Amy - NU(EA) Project No. l330-AZ31 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
