1、MIL-P-12764G (AR) 11 March 1981 SUPERSEDING MIL-P-12764F (MU) 10 May 1968 MI LI TARY SPEC IF1 CAT ION PROJECTILE, 4.2 INCH, ILLUMINATING, M335A2 LOADING, ASSEMBLING AND PACKING This specification is approved for use by the US Army Armament Research and Development Command, and is available for use b
2、y all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 This specification contains requirements not covered by the drawings and provides quality assurance provisions for the loading, assembling and packing of one type of projectile designated as Projectile, 4.2 Inch, Illuminating,
3、 M335A2. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or reauest for proposals, form a _ _ part of this specification SPECIFICATIONS MILITARY MIL-A-48078 STANDARDS FEDERAL FED- STD- 151 to the-extent spcified herein. - Ammunition, Standard
4、 Quality Assurance Provisions, General Specification for - Federal Test Method Standard h U.S GOVERNMENT PRINTING OFFICE.1981-703.023 1971 FSC: 1315 .- i- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- I MIL-P-127hqG 13 m 4777706 027Li393 h MIL-P-
5、12 7 6 4G (AR) MILITARY MIL-STD-105 -Sampling Procedures and Tables for Inspection by Attributes MIL-STD-286 - Propellants, Solids: Sampling Examination and Testing MIL-STD-1234 - Pyrotechnics: Sampling, Inspec- tion and Testing DRAWINGS (See 6.4) US ARMY ARMAMENT RESEARCH AND DEVELOPMENT COMMAND (
6、ARADCOM) PRODUCT AND PACKAGING DRAWINGS 8848553 - Packaging and Marking of Pellet 8861520 - Marking Diagram for Pallets for 8886446 - Illuminating Canister Loading 8886453 - Projectile, for Cartridge, 4.2 for 4.2 Inch Mortar Shell Bodies Projectile 75MM to 120MM Assembly Inch, Illuminating, M335A2 L
7、oad- ing Assembly INSPECT ION EQUIPMl3NT DRAWINGS 9201136 - Tunnel, Light 9201268 - Procedure, Light Output Measure- 9201390 - Procedure, Photocell Checkout 9200964 - Photometer Head with Cell ment 3. REQUIREMENTS 3.1 Materials. Materials shall be in accordance with the applicable drawings and speci
8、fications. 3.2 Components and assemblies. The components and assemblies shall comply with all requirements specified on drawing (dwg.) 8886453, and associated drawings and with all requirements specified in applicable specifications and standards. 2 Provided by IHSNot for ResaleNo reproduction or ne
9、tworking permitted without license from IHS-,-,-3.3 Moisture content - 3.3.1 First fire composition. The moisture content of the first fire composition at the loading station, prior to loading, shall not-exceed O. 30 percent. 3.3.2 Illuminating composition. The moisture content of the illuminant com
10、position at the loading station, prior to loading, shall not exceed 0.30 percent. 3.4 Static test of illuminating canister loading assembly 3.4.1 Burninq time. The burning time shall not be less 3.4.2 Luminosity. The average luminosity shall not be then 65 seconds (sec). less then 703,000 candlepowe
11、r and no assembly shall have a luminanosity of less than 670,000 candlepower. 3.5 Proving ground. 3.5.1 Functioning. The projectile loading assembly shall function satisfactorily (see 6.5) and shall provide effective illumination (see 6.6) for 60 sec. minimum (min.). 3.5.2 Premature bursts and secur
12、ity of parts. There shall be no premature burst or evidence of metal parts failure in the bore of the weapon or in approximately the first 200 yards horizontal range 3.6 First article inspection. This specification con- tains technical provisions for first article inspection. Requirements for the su
13、bmission of first article samples by the contractor shall be as specifed in the contract. of burrs, chips, sharp edges, cracks, dirt, grease, rust, cor- rosion products and other foreign matter. The cleaning method used shall not be injurious to any part nor shall the parts be contaminated by the cl
14、eaning agent. Exterior surf ace coatings shall be continuous except for a few light scratches not exposing base material. 3.7 Workmanship. The parts and assemblies shall be free 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-Ii27btlG 13 7777
15、706 0274375 T R; MIL-P-12764G (AR) 4. QUALITY ASSURANCE PROVISION 4.1 Responsibility for-inspection and standard quality assurance provisions. the contract, the provisions of MIL-A-48078 shall apply and are hereby made a part of this detail specification. Unless otherwise specifed herein or in 4.2 C
16、lassification of inspections. The following types of inspection shall be conducted on these items: a. First article inspection b. Quality conformance inspection 4.3 First article inspection 4.3.1 Submission. The contractor shall submit a first article sample as designated by the contracting officer
17、for evaluation in accordance with provisions of 4.3.2. requirement is applicable when the loading of projectile and assembly into cartridges is accomplished at different con- tractor factilities. The first article sample shall consist of the following items in sample quantities as indicated. This Pa
18、rt Description Pin, shear Support , lower Plate , baffle Canister body Can i Ster body assembly I1 1 um in at i ng can is ter loading assembly Bag , parachute Parachute assembly Parachute, shroud protector and bag assembly Projectile loading assembly First fire composition Illuminating composition D
19、rawinq 8833744 8886452 9234272 8886449 8885176 8886446 8885169 8085180 8885182 . 8886453 8886446 8886446 Quantity 15 15 15 15 5 15 15 15 15 15 4 ounces (02s.) 4 ounces (02s.) 4.3.2 Inspection to be performed. See MIL-A-48078 and Table I specified herein. 4.3.3 Rejection. See MIL-A-48078 4 Provided b
20、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-m 8 t H rl Y In cvm wul ww . *e b. N cv Cu cvN m m m mm . . . e. cvN mm In In In InLn Incv rl rl rl rl rl v) U u a, u4 a, 5 Li -0 W4-1 w *4c Limo a m .d OCOU cma ulc .FI rsm rn x Pi-w 5 . Provided by IHSNot for R
21、esaleNo reproduction or networking permitted without license from IHS-,-,-m LL O N rlcv . . cv* m m cv N mm m m m m . cv m . us 5 I *d fu AlCo u ci aJ -d QI .d P C m 8 U Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-12764G 13 m 9979906 023439
22、8 5 z I3 u w pi v) z H w 4 u H H 2 5 4 k v) Er I H w GI a 5 m ti t m : NID mm *. mm drl c o au) lm o =I u Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-L27bqG 13 W 9979906 0274399 7 W MIL-P-12746G (AR) 4.4 Quality conformance inspection 4.4.1
23、 Inspection lot formation. Inspection lots shall comply with the lot formation provisions of MIL-A-48078. addition, inspection lots of loaded projectile assemblies shall contain: In a. Projectile metal parts assemblies of one lot interfix from one maufacturer; b. Parachute assemblies of one lot inte
24、rfix from one manufacturer; c. Illuminating canister loading assemblies of one lot from one manufacturer . 4.4.2 Examination. See MIL-A-48078. Unless otherwise specified in the Classification of Defects and Test Tables, sampling plans and procedures for major and minor defects shall be in accordance
25、 with MIL-STD-105, Inspection Level II. 8 i -1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-12764G 13 m 7797786 0274400 T I- 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-z O H I3 u Eil p
26、i u z H w u i E O u b I3 H 4 a (vcv(v(v mmmm .o 5 al c .FI w al 5 al c O z 5 al c .d w al 5 al 8 z Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- i c c ic c l-i 8 t rl iF 1 c 5 i MIL-P-1276LIG 13 = 7779906 027LI402 3 m t c .FI E -rn aJaJ riri O0 IC
27、 c a - Q, www c O00 Q aJ c .FI W aJ a aJ z 8 l-i ldl Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-tIIL-P-12764G 13 I 777770b 0294403 5 E- ri b ti d a i , ,MIL-P-L23b11G 13 777770b 027111108 11 m- CJ N CJ hlCJCJ CJ CJCJ m M m mmm m mm . . . .* 0. a
28、, dp dp dpdpdp dp dpdp o o o O00 o mm r r r w*w r WCO o. o o O00 o O0 . . 0 *. a al c .cl W a, m a, c O 2 h 4 H H H Hum Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-mm OU w aJ0 MIL-P-L2764G 13 M 7779Ob 0271109 b W , d m 1 v) .FI 3 d m 3 v) .FI 3 N
29、 cv m m . . dp dp O In =a W O O e . TY Q, C O cr 8 .FI LI pi rl rlaJ aJc, v) u) -4 E aJ c, a d a aJ rl W w m m dl m u 4 c, .FI LI u Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i -. . . . . VIL-P-LZ7b4G 13 7777706 0274430 2 I - - 5 al C -4 ru al 5
30、 al c O z a U 7 hC o daJ d dl Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Ei u w nl trj z H w U 3 O Er z O U rl Ir. O rl h rl n m m 4 0 c rcf m O cl a, rl CI u a, -n O LI PI a, .FI .FI -1 - NIL-P-12764G 13 9999906 0294411 4 H- d VI d rl rlrlrl m
31、ama m m 1 111a 1 rn mmY)md rn 3 333u-r 3 e . d c3. -d .FI .FI .d . .d N NNNN m mmmm . e. N m . dpdpdpdp dp O000 O dd*d O rl O000 dp VI W O b . 2 a,E u m. m c .FI m 0 .FI E c a Li m a, c cn .FI urcf c .d uz a - 5 m oa, aJ rl 1111 * . Provided by IHSNot for ResaleNo reproduction or networking permitte
32、d without license from IHS-,-,-rl rl 8 t a 0 c pi pi m the sample size shall be 50 plus or minus 10 grams. 4.5.2 Static test of illuminant canister assembly. The equipment required for this test is delineated in 2.1 under Inspection Equipment Drawings. A sample of three candles shall be selected to
33、represent the mix/batch of candles (see 6.7). In calculating the candlepower of any one illuminant, the best continuous sixty seconds of illuminant readings are to be used. The first five disc assemblies should be removed prior to testing. The distance from the photometric cell to the the flare shal
34、l be 80 + .25 feet. The axial center of the fireball shall be located 54 t. .5 inch from the floor. The temporary back wall listed on-dwg. 9201136 shall be removed so that the distance from the center of the candle to the back wall is from 14 to 15 feet. The center line of the baffle opening shall b
35、e in line with the axial center of the fire ball and the axial center-of the photometric cell. The test shall be conducted in a hearth that has been painted flat black. Depending on the ash build-up, the tunnel hearth shall be repainted at least once in a three month duration to main- tain the black
36、 interior, or more frequently as determined by the Government Quality Assurance Representative. If the burn- ing time of an individual sample is less then 65 secs. or the average luminosity of less than 703,000 candlepower I or an individual luminosity is less than 670,000 candlepower, the mix/batch
37、 shall be rejected. 4.5.3 Hardness test of canister body. A gooseneck adap- ter shall be used to permit takins a Rockwell hardness reading on the inside surface of the canister body approximately one inch from the open end. Two hardness determinations, taken 180 degrees apart, shall be taken on each
38、 canister body. Each determination shall consist of the average of two readings taken approximately .250 inch apart. The test shall be performed as specified in Method 243.1 of FED-STD-151. After testing, conforming samples may be returned to production. 4.5.4 Proving ground. The projectile assembly
39、 shall be assembled with accepted components; fuze, expelling charge, - - propelling charge, ignition cartridge, rotating disc, pressure plate and obturating mechanism. from a 4.2“ mortar for which the round is standard and in accordance with Table II. However, if meteorological The cartridge shall
40、be fired 27 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I. . conditions or time of fuze functioning so dictate, the proving i - ground shall adjust the fuze in order to increase the height of burst and insure effective illumination (see 6. ). Obs
41、er- vation shall be made for compliance with the requirements specified for security of parts, parachute functioning and effective ilimination (see 6.6). In addition, muzzle velocity, time of fuze functioning and height of first light shall be recorded for information only. Any malfunction occuring
42、during the test shall be reported in the firing record. official firing record. Meteorological data shall also be reported in the TABLE II Propellant Phase 12 25 1/2 41 - Fuze Setting* (sec. ) 8.5 26.0 32. O Mor tar Elevation“ (mils) 900 800 80 O * Fuze setting and elevation is nominal 4.5.5 Salt sp
43、ray test. This test shall be a 5 percent salt spray test as specified in FED-STD-151, Method 811.1. 5. PACKAGING 5.1 Packinq. Packing shall be as specified on dwg. 8848553. 5.2 Marking. Marking shall be as specified on dwg. 8861520. 6.1 Intended use. The component covered by this specification is in
44、tended for use on the 4.2 Inch, Illuminating, M335A2 Cartridge. 6.2 Ordering data. See MIL-A-48078. 6.3 Submission of inspection equipment for design approvals. See MIL-A-48078. Submit designs as required to Commander, US Army Armament Research and Development Command, ATTN: DRDAR-QAR-I, Dover, NJ 0
45、7801. 28 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4 . .- . - - - MIL-P-12764G 13 7979706 0274420 5 il MIL-P-12764G (AR) 6.4 Drawinqs. Drawings listed in Section 2 of this specification under the heading US Army Armament Research and Developmen
46、t 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 cognizance of ARRADCOM. 6.5 Satisfactory functoning. Satisfactory
47、functioning shall be defined as ejection of the parachute and illuminat- - ing canister assembly and proper suspension and ignition of the candle. 6.6 Effective illumination. Effective illumination is defined as burninq of the candle without exploding or breaking-up while-suspended by the parachute.
48、 recorded for “effective illumination“ shall be considered as the time from the appearance of first light from the candle to either (1) burnout of the candle while still in the air (normal burn-out) or (2) burning of the candle until ground impact. Burning of the candle after striking the ground shall not be considered as “effective illumination“. Any occurancs which detracts from “effective illumination“ as herein defined, shall be recorded on the official firing record. The time .7 Mix/Batch. A mix of candles i
