1、- flIL-C-13L173C 13 m 777770b 0275352 B m MIL-C-l3473C(MU) 5 MAY 1965 SUPERSEDING MIGG13473B( MU) 20 MAY 1964 MILITARY SPECIFICATION CARTRIDGE, 106MM, HEAT, M344A1, LADING, ASSEMBLING AND PACKING i. SCOPE MIL-STD-105 - Sampling Procedures and Tables for In- 1.1 This specification covers the loading
2、spection by Attri- assembling and packing for one type of anti- butes (ABC-STD- tank cartridge designated as Cartridge, 106- 105). MIGSTD-109 - Inspection Terms and MM, HEAT, M344A1. Definitions. 2. APPLICABLE DOCUMENTS MIL-STD-414 - Sampling Procedures 2.1 The following documents of the issue and T
3、ables for In- in effect on date of invitation for bids form a spection by Va- part of this specification to the extent spec- riables for percent Xed herein. Defective. SPECIFICATIONS MILITARY MIL-A-2550 - Ammunition and Spe- cial Weapons, Gen- eral Sp eci fi ea t i o n for. MIL-R-11470 - Radiographi
4、c Inspec- tion, Qualification of E q u i p m en t, Operators and Pro- cedures. MIGR-11471 - Radiographic Inspec- tion of Metals. STANDARDS MILITARY MIL-STD-1167- A mm un i ti on D at a Card. MIL-STD-1235- Single and Multilevel Continuous Sam- p 1 i n g Procedures and Tables for In- spection by Attri
5、- butes. DRAWINGS ARMY 7549097 - Cartridge, 1 O 6 M M, HEAT, M344A1, w/ Fuze PIBD, MSOSA1 7548962 - Container, Ammuni- tion, Fiber, M3TB for Cartridge 106- MM, HEAT, M344- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-rlIL-C-L3W3C MIEC-13473C (MU)
6、Segment A B C 13 W 9993906 0295353 T m Sum of areas of au cavities (aquare inches) 36 9 M 7648963 Al w/Fuze PIBD M509 for Rifle M40A1, Assembly, Details and Pack- ing. - Box, Packing, Ammu- nition, for 106MM Rifle Cartridges in Fiber Container M316, Assembly Details and Pack- ing. PUBLICATIONS ARMY
7、IEL-7549097 - Index of Inspection Equipment Lists. (Copies of specifications, standards, drawings and publications required by contractors in connection with specific procurement and functions should be obtained from the procuring activity or as directed by the contracting officer.) 3. REQUIREMENTS
8、3.1 Material. 3.1.1 General. Materials shall be in accord- ance with applicable speoifications and draw- ings. 3.1.2 Clean scrap. Clean scrap produced in regular operations may be remelted and re- used provided it complies with the require- ments for the grade o high explosive spec- ified, except fo
9、r form. Scrap from floor sweep- ings, ventilation and suction apparatus (other than from drilling operations specifi- cally controlled to prevent contamination of explosive) shall not be used (see 6.4). 3.2 Cartridges. The cartridges shall com- ply with all requirements specified on Draw- ing (dwg.)
10、 7649097 and with all require- ments specified in applicable specifications. 3.3 Cavitation. 3.3.1 General. Cavities having a maximum (max.) projected dimension of 1/32 inch or less shall be disregarded provided that they are separated by inch of solid explosive. 3.3.2 Maximum projected arem and d-
11、mensions of cavities. The maximum pro- jected areas and dimensions of cavities in each of the segments (see figure 1) shall be in accordance with table I. TABLE I 3.3.4 Cracks and annular vings. Cracks shall be permitted if they are no wider than 1/32 inch. The presence of annular rings inch thick,
12、max., and extending from the shell wall inch into the charge shall not be cause for rejection, except in Segment C. No annular rings are permissible in Segment C. The cavity area represented by such a crack or annular ring shall not be included when determining cavity area in the charge. 3.3.5 Pipin
13、g cavitzj. A piping oavity on the longitudinal axis of the projectile between the apex of the cone and the faced surface of the charge shall be permitted provided that its projected length does not exceed IV2 inches and its width does not exceed l/o inch. The projected area of such a cavity shall no
14、t be dncluded when determining cavity area in the charge. 3.3.6 Surface cavitation. The maximum dimension of any visible cavity in the faced surface (see 6.6) of the charge shall not ex- ceed 3/i6 inch. Individual cavities formed due to chipped or broken explosive from the side- 2 Provided by IHSNot
15、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-LWC 13 m walls of the fuze well shall not extend in ag- gregrate around more than of the fuze well circumference (1 inch). The total area of all cavities in the base of the fuze well shall not exceed square inch, T
16、he total area of all cavities in the rear face of the charge shall not exceed square inch. c- 3.4 Propellant weight. The weight of the propellant shall not differ by more than plus or minus 0.25 ounce avoirdupois from that designated by the loading authorization for the particular lot of propellant
17、used. 3.5 Bullet pull. The cartridge shall sep- arate from the projectile at a load between 3000 pounds minimum (min.) .and 7000 pounds max., when tested as specified in 4.3.4. 3.6 Electrical circuit resistance. The loaded and fuzed projectile, prior to assembly into a complete round, shall have an
18、electrical cir- cuit resistance of not less than 62,000 ohms nor more than 300,000 ohms when tested .as specified in 4.3.2. 3.7 Proving ground. The cartridge shall comply with the following requirements when tested as specified in 4.3.5. 3.7.1 Muzzle velo however, the use of a densi- tometer is reco
19、mmended. 4.3.2 Electrical resistance of projectile. This test shall be conducted after assembly of fuze and fuze lock plug. The resistance shall be measured between the eyelet and ogive, The short circuit current of the test equipment shall not exceed 20 micro amperes. 4.3.3 Torque tests. The torque
20、 shall be ap- pXed while holding the parts immediately ad- jacent to the joints being tested so as to avoid possible loosening of other joints. The joint under test shall be marked to provide a means for detection of any movement be- tween the adjacent parts. Any discerable movement between adjacent
21、 parts shall be regarded as a torque test failure. 4.3.4 BuUet pull. The sample cartridges shall be tes?ed for security of crimp of the cartridge case by applying the load in an axial direction. The rate of travel of the testing machine head aha11 be JO0 to ,125 inch per minute, inclusive. 4.3.5 P.i
22、*ouing ground. These tests shall. be conducted at a Government proving ground in accordance with the applicable Ordnance Proof Manual and Acceptance Test Proce- dure. The cartridge shall be fired in a rifle for which it is standard and observation shall be made for compliance with all applicable req
23、uirements. 4.3.5.1 Penetration. Cartridges tested- for penetration shall be fired at a 6 inch homoge- neous armor plate placed at a 60 degree angle position from the vertical and approxi- mately 400 feet from the muzzle of the rifle. 4.3.5.2 Accuracy (f or inf mnation only). The cartridges fired in
24、the muzzle velocity phase shall be fired at a screen placed 1,000 meters from the muzzle of the rifle. The hit pattern results shall be recorded on the firing record for informational purposes. 4.3.5.3 Fgn opening. The rounds fired in the penetration and velocity accuracy tests shall be fired throug
25、h lJis inch chipboard or with photographic coverage to determine proper fin opening. 5. PREPARATION FOR DELIVERY 5.1 Preservation and packaging. 5.1.1 Level A. The artridges shall be pre- 13 (3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-served a
26、nd packaged in accordance with dwg. 7548962. 5.2 Packing. 5.2.1 Level A. The cartriciges in containers shall be packed in accordance with dwg. 7548963. 5.3 Data cards. Data cards ,shall be pre- pared for each lot in accordance with the information specified in MIGSTD-1167. 6. NOTES 6.1 Ondering data
27、. Procurement documents shall specify title, number and date of this specification. 6.2 Inspection code numb.ers. The five digit code numbers assigned to the inspections herein are to facilitate future data collection and analysis by the Government. 6.3 Inspection equipment. The contractor shall des
28、ign inspection equipment as required by the referenced Inspection Equipment Lists (IEL) in accordance with the instruc- tions of paragraphs 6.3.1 through 6.3.7. 6.3.1 Inspection equipment lists. Inspec- tion equipment lists indicate the availability of inspection equipment designs by showing in the
29、“number” column of the list of inspec- tion equipment (O0 Form 1242-3) the num- bers of drawings of existing equipment de- signs or codes as indicated in paragraph 6.3.2. Design action required of the contrac- tor with respect to the different types of drawings that may be listed is described in par
30、agraphs 6.3.3 and 6.3.4. Action required by the conractor with respect to commer- cial inspection equipment is described in 6.3.5. The conractor will be required to pre- pare detailed drawings in accordance with 6.3.6 for all the equipment coded as “Con- tractor Design” in the number column. These c
31、ontractor designs must be approved by the Government prior to fabrication or procuring MILC-13473C (MU) of the equipment. Designs shall be submitted for approval as specified in 6.3.7. 6.3.2 Inspection equipment list codes. The inspection equipment as defined in 6.3.3, 6.3.4, 6.3.5 and 6.3.6 will be
32、 designated in the IEL by the lollowing codes: CDAF - Contractors design responsi- bility on Army format in accordance with MIGD- 45608. CDCF - Contractors design responsi- bility on contractor format. AD -Army design. ADMU -Army design, mandatory for CE - Commercial equipment. SCD - Specification c
33、ontrol drawing. use, 6.3.3 Armg designs. Army designs are re- flected on detailed drawings which completely depict all the information necessary for the fabrication of the item of inspection equip- ment. The contractor need provide no design when an Army design is listed for an item of inspection eq
34、uipment. Army designs fall into two basic classifications, mandatory and nonmandatory. When an inspection equipment list references mandatory Amy designs, the contractor shall comply with, and use these designs accordingly. The contractor may, however, in connection with nonmandatory designs and wit
35、h the approval of he Gov- ernment, design alternate inspection equip- ment or use comparable commercial equip- ment to facilitate his operations. Such contractor prepared designs or commercial equipment selections must be approved by the Government prior to fabrication or pro- curing of the equipmen
36、t. Designs shall be submitted for approval as specified in 6.3.7. 6.3.4 Specification control drawing. Specifi- cation control drawings depict the minimum equipment requirements in outline, descrip- 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
37、UIL-C-L3W3C 13 m 777770b 0275365 b MILC-13473C (MU) tive, diagrammatic or pictorial form only and specify the required performance or other characteristics. Contactors must prepare de- tailed drawings (see 6.3.6) of their designs in support of specification control drawings. These contractor prepare
38、d designs must be approved by the Government prior to the fabrication or procuring of the equipment. Commercial equipment meeting the require- ments of specification control drawings may be approved if described in sufficient detail to permit identification and evaluation by the Government. Designs
39、shall be submitted for approval as specified in 6.3.7. 6.3.5 Cornmerda1 equipment. Commercial equipment is inspection equipment that has universal application for a specific- function. It is comprised of items commonly used by industry and Government, Contractors are not required to furnish drawings
40、 of commer-i cia1 inspection equipment, but a list of such equipment must be approved by the Govern- ment. Lists shall be submitted for approval to the inspection element of the agency ad- ministering the contract. 6.3.6 Chtractor designs. Contractor de- signs are designs of inspection equipment for
41、 which the Government has assigned design responsibility to the contractor. Contractor designs shall be supported by detailed draw- ings which depict all information necessary to completely fabricate, calibrate and oper- ate an item of inspection equipment. This requires that the necessary views, di
42、men- sions, materials, finish, notes,. operating and calibration instructions be properly depicted in accordance with approved practiws to the extent that further calculation or clarifica- tion will not be required. Contractor designs identified as CDCF may be developed on the format the contractor
43、normally employs in his equipment design procedure provided such format reflects the detail and informa- tion specified above. Contractor designs iden- tified as CDAF shall comply with the format and requirements of MIL-D-45608, and in addition, contain the detail and information specified above. Fi
44、nal approved contractor designs identified as CDCF shall be suitable for microfilming. They must be nonrepro- ducible diazo or electrostatic prints of top quality full size with black line on white background and shall provide a legible print produced via the 35MM microfilm process. Contractor shall
45、 submit one copy of the final design as a rolled set or flat set. 6.3.7 Submis&crn of contructor designs. De- signs shall be submitted for approval to the Commanding Officer, Picatinny Arsenal, ATTN: SMUPA-ND. Design review will nor- mally be accomplished within one month after receipt by Picatinny
46、Arsenal. Partial submission of inspection equipment designs is permissible and encouraged. However, the Arsenal completion date for design review will be based on the date of the final submis- sion of designs. 6.4 Clean scrap. Clean scrap is defined as scrap formed in kettles, pails, risers and load
47、- ing machines used in pouring and cooling operations, and scrap formed in the drilling operation. 6.5 Penetration. Complete penetration is defined as a hole completely through the plate and free from obstructions. However, the lodging of a copper slug in the completed hole is not considered cause f
48、or rejection. 6.6 Faced surface. The faced surface of the charge includes the bottom and sidewalls of the fuze well and the rear face of the charge. 6.7 Cost of check t,est. The contracting officer shall arrange for the contractor to be reimbursed for the expense incurred in the perfomance of the ch
49、eck tests. The test shall be conducted at Govenment expense without cost to the contractor who loaded the primers or to the contractor assembling the cartridge, and shall not constitute a basis for rejection against either contractor, except where de- terioration has occurred as a direct result of carelessness in handling, storage, etc., per- 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-13473C 13 B 7977906 0295366
