1、MIL-P-5 1474A(EA) 25 April 1984 SUPERSEDING - MIL-P-5 14 74 (EA 16 June 1980 MILITARY SPECIFICATION PROJECTILE, 64 MM, RIOT CONTROL, KE M743 This specification is approved for use by US Amy Armament, Munitions and Chemical Command, Department of the Army, and is available for use by all Depart- ment
2、s and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers requirements, quality assurance provisions and packaging for M743 projectile, selected components, and the M743, 64 MM projectile assembled together with the M755 blank cartridge in a carrier assembly. 3 APPLI
3、CABLE DOCU!4ENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless otherwise specified, the following specifications, standards, and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the
4、 solicitation form a part of this specification to the extent specified herein. STANDARDS MILITARY NIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-407 - Visual Inspection Guide for Rubber Molded Items. MIL-STD-414 - Sampling Procedures and Tables for Inspection by MIL-STD-1168
5、 - Lot Numbering of Ammunition. Attributes. Variables for Percent Defective. : Beneficial comments (recommendations, additions, deletions) and any perti- : : nent data which r be of use in improving this document should be addressed: : to: Commander Artnament Research and Development Center, US Army
6、 Armament, : : Plunitions an.1 Chemical Command, ATTN: DRSMC-TSC-S(A), 4berdeen Proving : Ground, EID 21010 by using the self-addressed Standardization Document : Improvement Proposal (DD Form 1426) appearing at the end of this document : : or by letter. ,- - FSC 1310 Provided by IHSNot for ResaleNo
7、 reproduction or networking permitted without license from IHS-,-,-MIL-P-5L474A 13 777770b 04b4002 5 * E MIL- P-5 14 74A( E A) 2.1.2 Other Government documents, drawings, and publications. The ollowin,p other Government documents, drawings, and publications form a part of this spec- ification to the
8、 extent specified herein. DRAWING AND TECHNICAL DATA PACKAGE LIST (TDPL) US ARMY ARMAMENT, MUNITIONS AND CHEMICAL, COMMAND CHEMICAL RESEARCH AND DEVELOPMENT CENTER TDPL 122-3-60 - Projectile, 64 W: Riot Control, KE M743 w/ctg M755 122-3-70 - Packing and Marking Diagram-Projectile 54 MN and M743 122-
9、3-43 - Cartridge 5.56 MM: Blank iyi755. 122-3-75 - Projectile, 64 YM - M743. (6 each). w/ctg M755. US ARMY MATERIEL DEVELOPMENT AND READINESS COMMA?iD DARCOM Drawing 19-48-4116-20PA1002 - Unitization Procedure for fioxed Ammunition and Components on 4-Way Entry Pallets. DARCOM Drawing 19-48-4116/32-
10、20PA1002 - Appendix 32, Unitization Proce- dures for Boxed Ammunition and Components on Miay Entry Pallets. TECHNICAL MANUAL TM9-1010-224-10 - Operators Manual, Launcher, Projectile, 54 MM Riot Control. (Copies of specifications, standards, handbooks, drawings, and publications required by manufactu
11、rers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contract- ing officer. ) 2.1.3 Other publications. The following documents form a part: of this speci- fication to the extent specified herein. The issues of the documents wh
12、ich are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. ASTM STANDARDS D 3951 - Commercial Packaging, Yractice for DoD Adopted. (Application for copies should be addressed to ASTM, 1916 Race Street, Philadelphia, PA 19103.) 2 Provid
13、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 P MIL-P-51474A(EA) (Industry association specifications and standards are generally available for reference from libraries. and using Federal agencies.) They are also distributed among technical groups 2.3
14、Order of precedencel In the event of a conflict between the text of this specification and the references cited herein, the text of this specifica- tion shall take precedence. 3. REQUIREMENTS 3.1 Materials and components. 3.1.1 Materials. All materials cited on TDPL 122-3-60 and on the subsidiary dr
15、awings shall conform to the specifications, listed thereon or to the speciic characteristics set forth on the drawings. 3.1.2 Components. All components of the projectile shall conform to the specifications and drawings listed on TDPL 122-3-60. 3.2 Assembly. The projectile shall be assembled as show
16、n on Drawing 122-3-75. 3.3 Perf ormance. 3.3.1 Wrap assembly. The wrap assemb“qr shall have a maximum yield force of 24.25 pounds and a maximum yield strain of .O39 inch per inch (inlin) when tested in accordance with 4.4.4.1. 3.3.2 Integrity/accuracy. When fired from a launcher, the projectile shal
17、l have no separation of the breakband froin the projectile prior to target impact and shall maintain sufficient accuracy to strike a 46 centimeter (cm) wide, 175 cm high target at a distance of 40.0 - + 0.5 meter from the launcher when tested in accordance with 4.4.4.2. 3.5 Preproduction. Prior to t
18、he start of regular production, a preproduc- tion sample of components shall be produced in accordance with this specifica- tion for examination and test (see 4.3). 3.6 Workmanship. The projectile body shall be free from imperfections listed in Table I of MIL-STD-407 and damage such as rips or tears
19、 which could affect its intended use. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility- for inspection. 4.1.1 - Contra .- +r)r responsibility. Unless otherwise specified in the con- tract or purcLase order, the contractor is responsible for the performance of all inspection requirements as specifi
20、ed herein. Except as-otherwise specified 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - MIL-P-51474A 13 = 737770b 04611004 7 MIL-P-51474A(EA) k in the contract or purchase order, the contractor may use his own or any other Eacilities suitable f
21、or the performance of the inspection requirements speci- fied 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 necessary to assure supplies and services conform to prescr
22、ibed requirements. 4.1.2 Objective evidence. The contractor shall provide objective evidence acceptable to the contracting officer that the requirements of 3.1 and section 5 for which specific inspection has not been provided in this specification have been sat is f ied 4.2 Classification of inspect
23、ions. (a) Preproduction inspection (see 4.3) (b) Quality conformance inspection (see 4.4). 4.3 Preproduction inspection. 4.3.1 Preproduction lot. A preproduction lot of projectiles and components shall be manufactured using the same methods, materials, equipment and pro- cesses as will be used in re
24、gular production. The preproduction lot shall con- sist of the quantity of the projectiles and components and conform to corres- ponding drawings listed as follows: Quant it y Item Drawing 1 O0 Airfoil bodies (a minimum of ten bodies from 122-3-74 2 O0 Project il es 122-3-7 5 48 Projectiles with car
25、tridges 122-3-60 48 Projectiles, packed level B 122-3-70-10 each mold cavity) 4.3.2 Sampling. 4.3.2.1 For examination. The preproduction samples of projectiles and compo- nents listed below shall be randomly taken from the preproduction lot. Quant it y Item Drawing 10 Airfoil bodies (a minimum of on
26、e from each 122-3-74 10 Project iles 1 2 2- 3 - 7 5 24 Projectiles with cartridges 122-3-60 24 Project iles , packed levei R 122-3-70-10 mold cavity) 4.3.2.2 For destructive tests. (a Wrap assembly. A sample of 20 completely assembled projectiles shall be randomly taken from the preproduction lot. 4
27、 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(b) Integrity and accuracy. A sample of 32 completely assembled projectiles shall be randomly taken from the preproduction lot. 4.3.3 Inspection procedure. 4.3.3.1 For examination. The sample from the
28、preproduction lot shall be examined for all the requirements specified on the drawings and specification. The acceptance number is zero. 4.3.3.2 For destructive tests, (a) Wrap assembly. The sample shall be tested in accordance with MIL-STD-414 and 4.4.4.1 using and AQL of 1.0 percent defective. (b)
29、 Integrity/accuracy. The sample shall be tested in accordance with 4.4.4.2. The preproduction lot shall be accepted on 2 or less defectives in the sample or rejected on 3 defectives in the sample. 4.3,4 Acceptance/rejection criteria. The preproduction lot shall comply with the examinations and tests
30、 specified in 4.3.2 to be acceptable. The con- tractor shall obtain written approval from the contracting officer prior to proceeding with regular production. 1 4.4 Qaulity conformance inspection. 4.4.1 Lotting. Rach lot shall be identified and controlled iii accordance with MIL-STD-1168. A lot shal
31、l consist of no more than 5016 projectiles pro- duced by one manufacturer, at one plant, from the same materials, and under essentially the same manufactaring conditions. No more than one lot number of cartridges shall be packaged with any one lot o projectiles. I 4.4.2 Sampling, 4.4.2.1 For examina
32、tion. Sampling shall be conducted in accordance with MIL-STD-105. 4.4.2.2 For destructive test. 4.4.2.2.1 Wrap assembly. Sampling shall be conducted in accordance with MIL-STD-414, level II. 4.4.2.2.2 Integrity/accuracy. Sampling shall be conducted in accordance with MIL-STD-105, level S4. 4.4.3 Ins
33、pection -;-medure. 4.4.3.1 - For ayairiL,iation. Sample projectiles and level B packaging (section 5) shall be e.amined in accordance with the classification o defects and with XIL-ST-105, 5. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 -_- MIL-
34、P-51474A 13 7777706 04611006 E! W i MIJd-P-51474A(EA) z 4.4.3.2 For destructive test. 4.4.3.2.1 Wrap assembly. Wrap assemblies shall be tested in accordance with 4.4.4.1 and evaluated with MIL-STD-414 at an AQL of 3.5 percent defective. 4.4.3.2.2 Integrity/accuracy. Projectiles shall be tested in ac
35、cordance with 4.4.4.2 and evaluated with MIL-STD-105 at AQL at 6.5 percent defective. 4.4.3-3 Classification of defects, (a) Projectile, 64 MM - M743 (Dwg 122-3-75). Categories Defects Critical: None defined Major: AQL 1.0 percent defective 101 As s emb 1 ed impr Oper 1 y 102 Outside diameter incorr
36、ect 103 Inside diameter incorrect 104 Weight incorrect 105 Tissue wrap incorrect Ring, airfoil body (Dwg 122-3-74). Categories Defects Critical: None defined Major: AQL 1.0 percent defective 101 Leading edge not free from mold flash 102 Flash on other surfaces exceeds specified thickness and height
37、103 Durometer incorrect 104 Air foil profile incorrect 105 Stations 12 or 813 diameters incorrect 106 Workmanship (3.5) Packaging (Section 5,2). Categories Defects Critical: None defined Major: AQL 1.0 percent defective 101 Assembled improper 1 y 102 Components inissing oc incorrect 103 Marking miss
38、ing or incorrect Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-5 1474A(EA) (d) Packing (Section 5.3). Categories Defects Critical : None defined Major: AQL 2.5 percent defective 101 Marking missing or incorrect 102 Component loose or missing
39、103 Shipping container incorrect 4.4.3.3 Packaging inspection. During or immediately prior to the packaging, 100 percent examination of the cartridges shall be performed to ascertain that the cartridge type conforms to the drawing. Occurrence of another ?iode1 Slank cartridge or a dummy cartridge sh
40、all be classed as a najor defect. Occurrence of any type other than those listed shall be classified as a critial defect. All nonconforming cartridges shall be rejected. 4.4.4 Tests, Tests shall be conducted as follows: 4.4.4.1 Wrap assembly. (1) Precondition assembled projectile for 24 hours at 130
41、“ + 5F. (2) (3) Cut breakband and remove from projectile. (4) Cool projectile to room L2mperature in a low humidity environ- ment (i.e., dessicator). Remove strip 8 wraps wide from breakband which was over cavity area of projectile. Breakband shall be tested within 5 minutes of removal from the proj
42、ectile. (5) Tape ends of test strip allowing 6 inches exposed. (6) Mount test strip in tensile tester with jaws set G inches (7) Crosshead rate for test strip: 0.3 inches per minute. (8) Recording chart rate: 10 inches per minute. (9) Full scale of the chart shall initially be 20 pounds force. If ap
43、art. the sample exceeds 20 pounds force, the scale shall be changed to 50 pounds force full scale without stopping the test. (10) Caicuiations: (a) Yield force, lbs - Maximum load reading on chart (b) Yield strain, inlin - Draw a straight line that is best fit in the region between 5 and 10 pounds,
44、and extend it to the zero load axis. The product OE the distance along the zero load axis (y) rom this point to the maximurn yield point tlrnes the crosshead rate of the test strip divided by the product of the lene of the test strip times the recording chart rates equals yield strain. Y - - yield s
45、train - Y x 0.2 6 x 10 303 Example : 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.4.4.2 Integrity/accuracy. (a) (b) Precondition assembled projectile for 24 hours at 130“ + 5F. Cool projectile to room temperature in a low humidity environ- - I
46、ient (i.e., desiicator). (cl The projectiles shall be fired from a M234 launcher assembled Firing shall be conducted under to a M16Al/AR15 rifle using M755 blanks in accordance with !iYl 9-1010-224-10. The rifle shall be secured in a fixed mount. nil wind conditions. (d) The M234 launcher shall be c
47、leaned and lubricated in accordance with TM 9-1010-224-10 prior to starting the test. shall be fired prior to firing for record. the rate of one round every thirty seconds for the 6 rounds followed by a three-minute cool down period; repeat this cycle until all rounds are fired. A single “warming“ r
48、ound Firing shall be in groups of 6 at (e) Velocities shall be measured for information using photo elec- tric ballistic screens and elapsed time counters. The distance from the center of the screens to the launcher barrel shall be 5.0 + 0.1 feet. If the velocity is above 200 or below 170 feet per s
49、econd the shot shall not count. (f) There shall be no breakhand failures at launch as indicated by separation of the breakband from the projectiles prior to target impact and the projectiles shall impact within an area 46 cm wide by 175 cm high at the speci- fied distance of 40 meters from the launcher. This shall be determined by the actual impact group size and dispersion and not by the aiming point, (g Removal and replacem
