1、 MIL-C-71189 (AR) AMENDMENT 3 12 April 2001 SUPERSEDINGAMENDMENT 2 31 October 1996 MILITARY SPECIFICATION CARTRIDGE, 81MM, INFRARED ILLUMINATING, XM816 LOADING, ASSEMBLING AND PACKING This amendment forms a part of MIL-C-71189 (AR), dated 23 June 1994, and is approved for use by the U.S. Army Armame
2、nt Research, Development and Engineering Center, and is available for use by all Departments and Agencies of the Department of Defense. PAGE 2 2.1.2, Under Drawings: Add: “12977137 - Packing and Marking for Container, Metal, M548 for Canister Loading Assembly for Cartridge, M853A1, 81mm and Canister
3、 Loading Assembly for Cartridge, XM816, 81mm”. PAGE 3 * 3.4, Delete in its entirety and substitute the following: “3.4 Static functioning of the illuminant assembly. The static burning time shall be not less than 70 seconds and no more than 95 seconds. The average infrared output, defined as 0.6 to
4、0.9 micron wavelength in the near infrared spectrum, shall be not less than 75 watts per steradian for the best for the best 60 seconds after the initial 7 seconds of burning time from ignition and the average visible light output for the same best 60 seconds shall not exceed 500 candela. Determinat
5、ion shall be as specified in 4.4.5.4.” 1 of 8 AMSC N/A FSC 1315 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. INCH-POUND MIL-C-71189 was inactivated after 20 February 1997 for new design. Provided by IHSNot for ResaleNo reproduction or networking permitted without
6、 license from IHS-,-,-MIL-C-71189 (AR) AMENDMENT 3 PAGE 4 * 3.6, Delete in its entirety and substitute the following: “3.6 Pull test for the oval sleeve crimps to suspension wire and suspension wire ring. The oval sleeve crimps to the suspension wire and suspension wire ring shall withstand a pull f
7、orce of 2,000 pounds minimum.” PAGE 7 Under TABLE II. First article inspection, delete drawing number “dwg. 12953387” and substitute “dwg. 12977252” wherever it appears. PAGE 11 * 4.4.2.1, Delete “12953387” and substitute “12977252” PAGE 12 4.4.2.2, Delete drawing number “12953387” and substitute “1
8、2977252”. PAGE 13 4.4.2.3, Delete drawing number and substitute “12953387” to “12977252”. PAGE 14 * 4.4.2.4, Major 104, Delete in its entirety and substitute the following: “Major 104 Pull test for oval sleeve crimps to suspension wire and suspension ring . . . 13.64.4.5.10” PAGE 15 * 4.4.2.5: Delet
9、e Special A in its entirety. Delete Special B in its entirety. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-71189 (AR) AMENDMENT 3 Delete NOTE 1 in its entirety and substitute the following: “1/ See 4.4.3.4” Delete Major 109 in its entiret
10、y and substitute the following: “109 Gap, max between tail cone and body tube.III.3.2.Gage” Major 112, conformance criteria, delete “Level III”. Add Major 113, 114, 115, 116 as follows: “113 Warning missing, incomplete, or incorrect. 100%.3.2.Visual 114 Obturator ring missing 1/. 100%.3.2.Visual 115
11、 Gap, max between tail cone and body tube .III.3.2.Gage 116 Obturator ring pull test 5/. 3.2.Gage/4.4.5.8” PAGE 18 * 4.4.2.7, Add new Major 109 as follows: “Major 109 Obturating ring missing.100%.3.2Visual” PAGE 20 4.4.2.8, Majors 104, 106 and 107: Delete in their entirety. PAGE 23 4.4.2.12: Add the
12、 following as included page 23a. 4.4.2.13: Add the following as included page 23b. 4.4.2.14: Add the following as included page 23c. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QUALITY CONFORMANCE INPSECTION CLASSIFICATION OF CHARACTERISTICS MI
13、L-C-71189 (AR) AMENDMENT 3 TITLE Packing and Marking for DRAWING NUMBER 4.4.2.12 Container, Metal, M548 for Canister Loading Assembly for Cartridge, M853A1/XM816 81mm (Prior to Closing) SHEET 1 OF 1 12977137 CONFORMANCE REQUIREMENNEXT HIGHER ASSEMBLY CLASSIFICATION EXAMINATION OR TEST CRITERIA PARAG
14、RAPH INSPECTION METHOD REFERENCE Critical None defined Major 101 Canister loading assembly improperly packed Level III 3.2 Manual/Visual Minor 201 Packing material in unusable condition Level V 3.2 Visual 202 Evidence of poor workmanship Level V 3.8 Visual NOTES: QUALITY CONFORMANCE INPSECTION CLASS
15、IFICATION OF CHARACTERISTICS MIL-C-71189 (AR) AMENDMENT 3 TITLE Packing and Marking DRAWING NUMBER 4.4.2.13 Container, Metal, M548 for Canister Loading Assembly for Cartridge, M853A1/XM816 81mm (After Closing) SHEET 1 OF 1 12977137 CONFORMANCE REQUIREMENT NEXT HIGHER ASSEMBLY CLASSIFICATION EXAMINAT
16、ION OR TEST CRITERIA PARAGRAPH INSPECTION METHOD REFERENCE Critical None defined Major 101 Contents of metal can loose Level III 3.2 Manual 102 Cover assembly not secure Level III 3.2 Manual Minor 201 Marking missing, misleading or unidentifiable Level V 3.2 Visual 202 Metallic seal missing or impro
17、perly installed Level V 3.2 Visual 203 Evidence of poor workmanship Level V 3.8 Visual NOTES: 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-QUALITY CONFORMANCE INPSECTION CLASSIFICATION OF CHARACTERISTICS MIL-C-71189 (AR) AMENDMENT 3 TITLE DRAWIN
18、G NUMBER 4.4.2.14 Support, Propelling Charge SHEET 1 OF 1 12977198 CONFORMANCE REQUIREMENT NEXT HIGHER ASSEMBLY 9362799/ 12630600 CLASSIFICATION EXAMINATION OR TEST CRITERIA PARAGRAPH INSPECTION METHOD REFERENCE Critical None defined Major 101 Width of opening 1/ 3.2 Gage 102 Inside length 1/ 3.2 Ga
19、ge 103 Radius to outside surface of rib (3 places) 1/ 3.2 Gage 104 Inside radius to support wall 1/ 3.2 Gage Minor 201 Evidence of poor workmanship Level V 3.8 Visual NOTES: 1/ Sample three (3) parts from each mold cavity at the start of each mold run. All dimensions shall be as specified in the dra
20、wing prior to production run. PAGE 24 * 4.4.3.2, Delete in its entirely and substitute the following: “4.4.3.2, Static functioning. The test shall be performed as specified in 4.4.5.4. A sample for the First Article Inspection is specified in the Table II. A sample for the inspection lot shall be se
21、lected in accordance with the sampling plan shown in 4.4.3.2.a. The candle loading assemblies shall be tested for static burning time and candle ouput. If the static burning time of any individual test sample is less than 70 seconds or more than 95 seconds, or the average infrared output for the bes
22、t 60 seconds of the sample mean is less than 75 watts per steradian, or the average visible output for the same best 60 seconds is more than 500 candela, the inspection lots represented by the samples shall be rejected. No individual test sample shall have the average infrared output for the best 60
23、 seconds less than 70 watts per steradian or the average visible output more than 525 candela for the same best 60 seconds, otherwise the inspection lot shall be rejected.” 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-71189 (AR) AMENDMENT
24、3 PAGE 28 * 4.4.3.4, Delete in its entirety and substitute with the following: “4.4.3.4 Obturating ring pull test. This test shall be performed at the start of a production run and after each 100 cartridges that are welded during that run. The run shall be continuous for the entire time. If the weld
25、ing run is stopped for any reason, a new test sample must be tested and the test sampling process above shall resume.” * 4.4.3.5, Delete the title “ Pull test for oval sleeve crimps to suspension wire” and substitute “ Pull test for oval sleeve crimps to suspension wire and suspension wire ring” PAG
26、E 31 * 4.4.5.4.1: Delete the third sentence and substitute the following: “The average effective radiance is to be calculated, using the best 60 seconds of burn time, by dividing the total integral (watt-sec/steradian) over this period by 60.” Delete the last sentence and substitute the following: “
27、If the individual burning time or average effective radiance does not meet the requirement of paragraph 4.4.3.2, the illuminant inspection lot represented by the sample shall be rejected.” PAGE 32 * 4.4.5.8, Delete in its entirety and substitute with the following: “4.4.5.8, Obturating ring pull tes
28、t. Properly install and weld an obturating band onto a simulated 81mm body groove of the correct size and shape (see tail cone drawing) with a relief for a pull test hook. Apply the required load perpendicular (radically and in a direction away from the center axis) to the weld. If the weld fails be
29、low the minimum weld strength requirement, replace the band on all the rounds since the last test. If the weld fails above the maximum weld strength requirement, replace the band on all the rounds since the last test.” 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without li
30、cense from IHS-,-,-MIL-C-71189 (AR) AMENDMENT 3 PAGE 33 * 4.4.5.10, Delete in its entirety and substitute the following: “4.4.5.10 Pull test for oval sleeve crimps to suspension wire and suspension wire ring. The pull test sample is an assembly which consists of a suspension wire ring and a parachut
31、e cable as delineated in drawing 12953388, detail C. The test sample shall be assembled on a universal testing machine. One end of the pulling device shall be attached to the suspension wire ring. The fixture that comes into contact with the suspension wire ring shall simulate the pin drawing 938108
32、8. The other end of the pulling device is attached to the cable loop where the parachute shroud lines would be connected. The applied load shall be in an axial direction until the required pull force is exerted. The rate of travel of the machine shall be two inches per minutes maximum.” PAGE 34 5.1,
33、 5.2 and 5.3: Delete in their entirety and substitute: 5.1 Unit packing. 5.1.1 Level A. Unit packing for cartridges shall be in accordance with the requirements of drawing 9362799. 5.1.2 Level B. Same as level A. 5.1.3 Level C. Not applicable. 5.2 Packing. 5.2.1 Level A. Cartridges shall be packed i
34、n accordance with the requirements of drawing 12944509. 5.2.2 Level B. Same as level A. 5.2.3 Level C. Not applicable. 5.2.4 Packing for interplant shipment of canister loading assembly and IR canister loading assembly. 5.2.4.1 Level A. Not applicable. 7 Provided by IHSNot for ResaleNo reproduction
35、or networking permitted without license from IHS-,-,-MIL-C-71189 (AR) AMENDMENT 3 5.2.4.2 Level B. Packing for interplant shipment of canister loading assemblies and IR canister loading assemblies shall be in accordance with drawing 12977137. 5.2.4.3 Level C. Same as level B. 5.3 Marking. 5.3.1 Leve
36、l A. Packaged cartridges shall be marked in accordance with the requirements of drawing 9362799. Packed cartridges shall be marked in accordance with requirements of drawing 12944509. 5.3.2 Level B. Same as level A. 5.3.3 Level C. Not applicable. 5.3.4 Marking for interplant shipment of canister loa
37、ding assembly and IR canister loading assembly. 5.3.4.1 Level A. Not applicable. 5.3.4.2 Level B. Marking shall be in accordance with requirements of drawing 12977137. 5.3.4.3 Level C. Same as level B. The margins of this amendment are marked with an asterisk or vertical line to indicate where chang
38、es (additions, modifications, corrections, deletions) from the previous amendment were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous amendment. Custodian: Preparing activity: Army-AR Army-AR(Project 1315-0267) 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
