1、I . -. - MIL-C-48394 (AR) AMENDMENT 3 29 May 1991 SUPERSEDING AMENDMENT 2 20 May 1990 MILITARY SPECIFICATION CARTRIDGLE, ilMM, SMOKE, WP, M375A3 ASSEMBLING, MARKING AND PACKING This Amendment forms a part of Military Specification MIL-C-48394 (PA), dated 6 November 1975, and is approved for use by t
2、he U.S. Army Armament, Munitions and Chemical Command, and is available for use by all Departments and Agencies of the Department of Defense PAGE 1 2.1, line 6: Specification “MIL-C-48156“, delete “Cartridge, Ignition, XM299, LAP,“ and substitute, “Cartridge, Ignition, M299, LAP.“ Line 14: Delete “9
3、230175 - Container.in Jungle Wrap“ and substitute 9276596 - Container, Ammunition, Fiber, M252A5 for 81MM Mortar Ammunition.“ Add the following after last line on page: . “9287603 - Packing and Marking for Container, Fiber, *M252A5, Ammunition for 81MM Mortar Ammunition in Jungle Wrap.“ PAGE 2 2.1;
4、Add under Inspection Equipment Drawing as follows: “9280418 - Fin Distortion Gage“ PAGE 3 4.2.2, Examination, Add the following after the last sentence of the paragraph: “The contractor may elect to perform 100% inspection with automated equipment or impose mandakory process controls on automated op
5、erations in lieu of conducting sampling inspec- tions for defects listed in this specification. cases, calibration plans shall be submikted to the Technical Agency (see 6.5) for approval for each automatic inspection In such APSC N/A 1 of 9 FSC 1315 - DISTRIBUTLON STATEMENT A. Approved for public re
6、lease; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48394 (3) 13 9979906 0483289 3 MIL-C-48394 (AR) Amendment 3 station and process control plans must be submitted for approval for each of the automated operations.
7、 The plans shall identify; (1) the frequency (production interval) for validating equipment functioning, (2) the defect standards and (3) a description of material control procedures to be imposed on product passing through each automated station during the production interval between validations. U
8、nder these provisions final acceptance will be withheld from material produced during a production interval until satis- factory validation of each of the automated stations so controlled. In the event of a validation failure of any station, the material processed through such station since the last
9、- acceptable validation shall be placed in a rejected stat-us pending corrective action.“ PAGE 4 4.2.2.1, Change number in drawing box from “8835263“ to “888526.3“. PAGE 5 4.2.2.2, Delete “Major A“ and substitute “Major,“ Delete “9294735“ in Next Higher Assembly Block. PAGE 6 4.2.2.3, Delete “Major
10、A“ and substitute “Major,“ Delete “9294735“ in Next Higher Assembly Block. PAGE 7 4.2.2.4, line 2: Delete “Critical 1. Ignition cartridge head not fully seated.Visual“ and add “Critical 1. Depth of ignition cartridge from fin end below minimum.100%.3.2 . Gage CD. .Delete Critical 3 in iks entirety a
11、nd substitute as follows: “3. Propelling charge missing or damaged to the extent that propellant shall escape (if applicable, see 4.3.3.1).100% inspection . 3.2.Visual (see 4.3.3).“ Delete Critical 5 in its entirety. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
12、nse from IHS-,-,-*, c. - ./ * MIL-C-48394 (3) 13 W 999990b 0483290 T W _ - - - MIL-C-48394 (AR) Amendment 3 PAGE 7 Add: “6. Cracks in fin housing . 100%.3.2.Visual (4 power magnification). “ Above Major A add the following “Special a.WARNING notice(s) missing or illegible.100%.3.2.Visual,“ Delete “M
13、ajor A“ and substitute “Major,“ Delete 9294735“ in Next Higher Assembly Block. Add new Major 110 as follows: “110 Propelling charges damaged but not to the extent that propellant shall escape (if applicable, see 4.33.1).100% inspection . 3.2.visual (See 4.3.3).“ Add new Major 111 as follows: “111 Fi
14、n blade damaged or istorted.lOO% inspection . 3.2 ,Gage (see dwg. 9280418)“ PAGE 8 4.2.2.4, Delete “Major A“ and add “Major,“ Delete 9294735“ in Next Higher Assembly Block. Line 14 from top of page: Delete “202. Pettman cement does not cover.Visual“ in its entirety and substitute “Minor: 202. PeEtma
15、n cement (or alternate) improperly applied (applicable to the fuze, fin and ignition cartridge.0.65% . 3 , 2 .Visual .“ O PAGE 9 4.2.2.4, line 2: Delete this line in its entirety. Delete “9294735“ in Next Higher Assembly Block. PAGE 10 42.2.5, Drawing Number: Delete “9230175“ and add “9276596“, Next
16、: Higher Assembly: Delete “9230175“ and add “9287603“. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48394 (3) 13 9999906 0483291 1 MIL-(2-48394 (AR) Amendment 3 PAGE 10 4.2.2.5, Add Special A as follows: “Special A Propelling charge suppor
17、t missing . 100% inspection . 3.2.visualW Add new Critical 1 and Note (a) as follows: “1. Propelling charge damaged to the extent that propellant shall escape. 25(a).Visual (see 4.3.3)“ Add Major 101 as follows: “101. Propelling charge damaged but not to the extent that propellant shall escape . 25(
18、a). Visual (see 4.3.3)“ Add Note (a) as follows: (a) Twenty five cartridges which have the support for the propelling charges assembled shall have the support removed and remove the four propelling charges. The propelling charges shall be inspected for damage (splits, cracks, tears) which may result
19、 from assembling/disassembling of charges and support on fin boom. The inspection plan for Major defects shall be 100-1-2.“ PAGE 11 4.2.2.6, Drawing Number: Delete “9230175“ and add “9287603“. Next Higher Assembly: Delete “9230175“ and add “9287601“. Delete “Major A“ and substitute “Major“ PAGE 12 4
20、.2.2.7, Drawing Number: Delete “9230175“ and add “9287603“. Next Higher Assembly: Delete “9230175“ and add 9287601“. Delete “Major B“ and add “Major“. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48394 (AR) Amendment 3 PAGE 12 4.2.2.7, In
21、catagory column: Delete “131 and 132“ and substitute “101 and 102“ respectively. Foilowing line 7: add “203.Kcaft paper missing or not properly assembled .0.65%.3.2.visual.“ PAGE 13 4.2.2.8, line 2: Delete “Boards split or separated“ and substitute “Boards split or separated exposing container“, Cha
22、nge number in Next: Higher Assembly Block from “9278234“ to . “9287601n. Add new page 13a. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_._- MIL-C-48394 (3) 13 W 9999906 0483293 5 I I- 8 li It t 22 8 1 s f - Cu m CH, Ln W O 0 O L, cn Y h 1 E c 3
23、 c c O LL n o Y c CL o a Ln Q o Y LL c E c e Y O LL s Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. ne MIL-C-48394 (AR) Amendment 3 PAGE 14 Add new paragraph 4.2.2.10 as follows: “4.2.2.10 Support (see drawing 9369933) Catagory Examination AQL Me
24、thod Major 101 Inside length 0.40% Gage 102 Rib Radius 0.40% Gage 103 Inner Radius (small) 0.40% Gage 104 Length between open end 0.40% Gage PAGE 15 4.3.1, line 4: Add as follows: “The cartridges shall be radiographically examined for proper WP void position prior to but within two hours of “,e actu
25、al test firings. The radiographs are for information only and will only be developed and forwarded to Picatinny Arsenal, ATTN: SMCAR- FSA-IM when the lot fails the acceptance requirement for horizontal range standard deviation or duds.“ Line 5: Delete “One Half of the sample cartridges shall be fire
26、d at charge one and the other half at charge nine.“ and add “One half of the sample cartridges shall be fired at charge zero and the other half at charge four.“ Line 8: Delete “The individual velocities, pressures and ranges shall be recorded on the firing record“ and substitute: “The individual vel
27、ocities, pressures (charge four only), deflections and ranges shall be recorded on the firing record.“ Line 10: Delete “In the event of a misfire, the ignition cartridge shall be removed and forwarded to Picatinny Arsenal“ and substitute: “In the event of a misfire, the ignition cartridge shall be r
28、emoved and forwarded to Picatinny Arsenal, ATTN: SMCAR-FSA-IM.“ PAGE 16 Line 16 from top of page: Delete “.prints of all the other rounds in that particular charge zone, shall be attached to the firing record.“ and add “.and prints of all other rounds in that particular charge zone, in that lot, sha
29、ll be attached to the firing record.“ 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48394 (3) 13 999990b 0483295 9 H MIL-C-48394 (AR) Amendment 3 PAGE 16 Add new paragraph 4.3.3 as follows: “4.3.3 Damaged propelling charge. To ascertain tha
30、t a damaged propelling charge is to be classified as critical or major, the following procedure shall be used: a. Place the damaged charge on a M24 fin, oriented such that the propellant would be resting against the damaged surf ace. b. The fin-charge shall be hand-shaken vigorously three times. c.
31、The examination shall be made for propellant spillage - if any propellant is observed, the damaged propelling charge shall be classed as a critical defect; if no propellant is observed, the damaged propelling charge shall be classed as a major defect.“ “4.3.3.1 Alternate assembly/inspection procedur
32、e. The contractor may elect to utilize the following assembly operations: a. Place the support for the propelling charge in a holding fixture. b. Properly place the four propelling charges in the support with gaps aligned upward. c. Press the fin housing into the propelling charges and support assem
33、bly (step b). d. 100% visual inspection for damage to the ends of four propelling charges will be performed. e. Continue the assembly/inspection operations (see 4.2.2.51.“ 5.2, Delete this paragraph in its entirety and substitute the following: “5.2 Packaging, packing and marking - Packaging, packin
34、g and marking shall be in accordance with dwg. 9287603, 9287601, 9276596.“ 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-48394 (AR) Amendment 3 PAGE 17 6.2, line 3: Delete this line in its entirety and add: ATTN: AMSMC-QAT-I, Picatinny Arse
35、nal, NJ 07806-5000.“ “ARDEC, Add new paragraph 6.5 as follows: “6.5 Submission of calibration and process control plans. Prior to implementakion of calibration or process control plans in accordance with 4.2.2, plans shali be approved by ARDECI ATTN: AMSMC-QAT-1, Picatinny Arsenal, NJ, 07806-5000.“
36、Add new paragraph 6.6 as follows: judgement and experience indicate may, depending upon the degree of variance from khe design requiremenk: “6.6 Special defect. A defect, other than critical, that a. Result. in hazardous or unsafe conditions for individ- uals using, maintaining or depending upon the
37、 product or b. Prevent performance of the tactical function of a major end item.“ 0 The margins of this Amendment are marked with an askerisk to indicake where changes (additions, modifications, corrections, deletions) from the previous amendment were made, This was done as a convenience only and th
38、e government assumes no lia- bility whatsoever for any inaccuracies in these nokations. Bidders and contractors are cautioned to evaluate the require- menks of this documenk based on the entire content irrespective of the marginal notations and relationship to the last previous amendment, Custodian: Army-AR Preparing Activity: Army-AR (Project 1315-18) 9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
