1、-!4IL-C-l4909A (MU) i5 March i971 SUPERSEDING 30 June 1968 MIL-C-149 09- (MU) MILITARY SPECIFICATION CARTRIDGE, ILLUMINATING, M301A3 WITH FUZE, TIME; M84A1 FOR 81MM MORTARS LOADING, ASSEMBLING AND PACKING 1. SCOPE 1.1 This specification covers the loading, assembling and packing for one type of illu
2、minating cartridge, designated as Cartridge, Illuminating, M301A3, w/Fuze, Time, 1484A1 2 APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of this specification to the extent specified herein. SPECIFICATIONS MI
3、 LIT ARY MIL-A-2550 - Ammunition and Special Weapons; General Specification for 14IL-1-45607 - Inspection Equipnent, Supply and Mainten- ance of MIL-P-46568 - Primer, Percussion, IJlAlEl, Loading, Assembling and Packing STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for MIL-STD-109
4、- Quality Assurance Terms and Definitions MIL-STD-1235- Single and Multilevel Continuous MIL-STD-810 - Environmental Test Methods MIL-STD-414 - Sampling Procedures and Tables for Inspection Inspection by Attributes (ABC-STD-105) Sampling Procedures and Tables for Inspect ion by Attribut es by Variab
5、les for percent defective Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PUBLICATIONS ET-9220705 - Equipment Yaabulation (Copies of specifications, standards, drawings and publications required by suppliers in connection with specilic procurement fu
6、nctions should be obtained from the procuring activity or as directed by the contracting officer). 3 . REQUIREMENTS 3.1 Material.-Material and parts shall be in accordance with applicable specifications and drawings. 3.2 Loaded cartridge.-The loaded cartridge shall comply with all requirements speci
7、fied on Ilrawing (clwg. ) 9220705 and with all requirements specified in applicable specifications. 3.3 Disassembly torque 3.3.1 Fuze.-The fuze shall withstand a disassembly torque of 200 inch pounds when tested as specified in 4.3.1. 3.3.2 Pin assembly.-The fin assembly shall withstand a disassembl
8、y torque of 100 inch pounds when tested as specified in 4.3*1. 3.4 Proving Ground.-The cartridge shall conply with the 3.4,l iring.-The cartridge shall not fail to fire. following requirements when tested as specified in 4.3.2.1. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted
9、 without license from IHS-,-,-3.4.2 Puze,-The fuze shall fiinction and cause separation of 3.4.3 Functioning.-The projectile loading assembly shall the body tube assembly and the tail cone. function satisfactorily (see 6.4) and shall provide effective illumination (see 6.5) for 60 seconds, min. fail
10、ure in the bore of the weapon or in the first approximate 200 yards of horizontal range. range less than 80 percent of the average horizontal range. 3.4.4 Security of parts.-There shall be no metal parts 3.4.5 Horizontal range.-No cartridge shall have a horizontal 3.4.6 Fuze Burning Time.-The fuze a
11、ssemblies shall function and shall comply with the burning time in Table R when tested in accordance with 4.3.2.1. TABLE A Fuze Setting (sec) Gharge Increment Burning Time (sec) 20 30 4 8 18.iO - 21.90 28.00 - 32.00 3.5 Workmanship 3.5.1 All parts and assemblies shall be fabricated in a thorough, wo
12、rkmanlike manner. They shall be free of burrs, chips, sharp edges, cracks, dirt, grease, rust, corrosion products and other foreign matter. The cleaning method used shall not be injurious to any part nor shall the parts be contaminated by the cleaning agent. Exterior surface coatings shall be contin
13、uous except for a few light scratches not exposing base material, All required markings shall be neat and sharply defined. 3.5.2 The painting and marking shall be restored hy the assembling contractor on. any conponents furnished to him painted and marked when such paintings and rnarkings have been
14、marred or obliterated . 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.5.3 Surface finish.-The requirernents for surface finish shall be as specified on the applicable drawings. 3.6 First Article Sample.-This specification makes pro- visions for
15、 first article ballistic inspection. Requirements for the subrnission of first article samples by the contractor shall be as specified in the contract. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.-Unless otherwise specified in the contract or purchase order, the supplier is res
16、ponsible. for the performance of all inspection requirements as specified herein. Except as otheiwise specified in tho contract or order, the supplier may use his own or any other facilities suitable for the performance of the inspection requlrenents specified herein, unless disapproved by the Gover
17、nment. The Governrnent reserves the right to perform any of the inspections set forth in the specification where such inspections are deened necessary to assure supplies and services conforn to prescribed requirements. Reference shall be made to Standard MIL-STD-109 in order to define terms used her
18、ein. The provisions of Specification MIL-A- 2550 shall apply, 4.1.1 Submission of product.-At the tirne each completed lot of items deliverable under the contract is subrnitted to the Government for acceptance, the contractor shall supply the following information accompanied by a certificate which
19、attests that the information provided is correct and applicable to the product being submitted: u. A statement that the lot cornplies with all of the quality assurance provisions specified in this specification. b, Drawing and specification number and date, together with identification and date of c
20、hanges thereto. C. A statement that all material purchased by the contractor meets requirements, when such rnaterial is controlled by Government or commercial specifications referenced in any of the contractual documents, and that certificatea of conformance are on file and available for review. The
21、 certificate shall be signed by a responsible agent of the certifying organization. The initial certificate submitted shall be substantiated by evidence of the agents authority to bind his principal, Substantiation of the agents authority will not be required with subsequent certificates unless, dur
22、ing the course of the contract, this authority is vested in another agent of the certifying organization. d. Number of items in the lot. e. Date submitted 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.2 Inspection provisions 4.2.1 Lot formation
23、.-The term “inspection lot“ as used in this specification is defined as an essentially homogeneous collection of units of product from which a representative sample is drawn and inspected to determine conformance with applicable requirements. The sample sele-cted shall represent only that quantity o
24、f units from which the sanple was drawn and shall not be construed to represent any prior or subsequent quantities presented for inspection. Honogeneity shall be considered to exist provided the inspection lot has been produced by one manufacturer, in one unchanged process, in accordance with the sa
25、me drawing, same drawing revision, same specification and same specification revision and complies with the provisions for susbmission of product as specified in MIL-STD-105. Changes to the process, specification, or drawing not affecting safety, perfornance, interchangeability, or storage, as deter
26、mined by the Government, shall not be deemed to alter the homogeneity of an inspection lot. All material subnitted for inspection in accordance with this specification shall conply with the nomogeneity criteria specified herein regardless of the type of sampling procedure which is being applied to d
27、etermine conrormance with requirements. Lot numbering, as required, shall be in accordance with MIL-STD-1168. cartridges shall contain: from one manufacturer. number from one manufacturer. one manufacturer. one manufacturer. lot of propellant from one manufacturer. one manufacturer. Each inspection
28、lot of loaded complete round a. Loaded projectiles from one interfix lot number b. Loaded ignition cartridges from one interfix lot c. Loaded time fuzes from one interfix lot number from d. Loaded primers from one interfix lot number from e. Propellant increments made from not more than one f. Pin a
29、ssemblies from one interfix lot number from 4.2.1.1 First Article Ballistic Testing 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-14909A 13 m 979990b 046410 3 m : MIL-C-14909A (MU) 4.2.1.2 Submission of ballistic assemblies.-The contractor
30、shall submit a first article ballistic smple as designated by the contracting officer for determination of confurmance to drawing and specification requirements. After the fuze and projectile first article samples have been accepted, the first article ballistic sample shall be tested and shall consi
31、st of the following: a. Twenty-five complete rounds assenbled with inert loaded illuminant loading assenblies (suggested filler : sand and laminac) and inert fuzes. b. Forteen completely loaded cornplete rounds fuzed, painted and marked. 42.1.3 Metal parts security.-Twenty-five (25) of the cartridge
32、 metal parts shall be tested as shown in the phases in Table B. All of the cartridges shall be hcrt loaded to service weight and will be fired fror? a weapon for which the round is standard. The propellant charge will be adjusted to 0k.tai.n approximately 8400 pounds per square inch. Inert fuzes sha
33、ll be used on all of the metal parts security anti recovery test rounds. Pressure data shall be taken for each round fired, TABLE B Phase Mortar Elevation (tieg) Initial Production Sample Security Recover y 45 Opt ional 10 15 Recovery - Rounds fired for recovery which satisfy the requirenents of 3.4
34、.4 are to determine quality of ammunition produced. shall be made after recovery for evidence of body or tail cone deformation, dishing or breakup of the projectile other than by impact. If the proving ground determines that deformation, dishing or breakup of the cartridge has resulted, the results
35、of the test shall be referred. the projectile and fuze specification first article tests as well as the cartridge metal part security test the cartridge functioning tests shall be performed. The fifteen loaded cartridges shall be inspected for conformance to any or all of the requirements of this sp
36、ecification and any or all of the requirements of the applicable drawings at the contractors plant prior to nubrnission to the proving ground for proving ground testing. Seven of the sample prodectiles shall be fired at the Charge 4 zone while the remaining seven will be fired at the Charge 8 zone-e
37、artridge fuze function time shall be evaluated in accordance with MIL-STD-414, Section B, Table B3, AQL 4.0 percent. 6 Examination 4.2.1.4 Cartridge functioning.-After successful completion of Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-7 Provide
38、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-9 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by
39、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.2.2.6 Sealed Fiber container after kaxing-Jungle Wrap (see dwg. 9241848 and dwg. 9230175). Categories Defects Method of Code No. Inspe c t i on _. Critical: None defined. Ma j or : AQL 0.40 percent 101. Wax coat
40、ing incoriplete or damaged. Visual 06 O0 1 Minor: . AQL 1.00 percent 201. Marking missing or unidentifiable.Visual 06002 on container,.Visual 06003 202. Kraft paper improperly placed .4.2.2.7 Sealed wood packing box (see dwg. 9241849). Categories Defects Method of Code No. Inspect ion Critical : Non
41、e defined . Maj or : AQL 0.65 percent 101. Board -broken or split. . .Visual 07001 102. Strapping missing, broken or loose. 07002 Visual 103. DOD symbol missing or incorrect.Visual 07003 Minor : AC (see d$E. 9220705) - Major ciefect - Code No, O3Ol9.-The shell shall be gaged 100 percent for profile
42、and alignment. Any shell which fails to comply with the requirement specified shall be classed defective and removed from the lot. Equipment shall be in accordance with 11.2.4, The gaging shall be done just prior to installing the propellant. 4.2.3.3 Proving Ground 4 , 2.3.3.1 Beginning with the fir
43、st lot produced and continuing until three consecutive lots have complied with the acceptance criteria specified in Table I, sixty sample cartridges shall be selected for this test, The cartridges shall be observed for compliance with the requirements specified. Testing shall be in accordance with 4
44、.3.2.1. 4.2.3.3.2 After three consecutive lots have complied with the criteria of 4.2.3.3.1, fifty sample cartridges shall be selected for this test. The cartridges shall be observed for compliance with Table I and the requirements specified. Testing shall be in accor- dance with 4.3.2.1, In the eve
45、nt that three successive lots fail GO meet the requirements of I+. 2.3.3.2, the sampling provisions of 4.2.3.3.1 shall again apply When three consecutive lots have again successfully passed the requirements contained therein, the provisions of 4.2.3.3.2 shall be reinstated, Cat e gory Critic al Ma j
46、 OP Major Ma j or Ma j or Major Minor 12 TABLE I Defect Premature burst or metal parts separation Failure to fire Puze functioning Fuze functioning time Horizontal range less than 80% of average range Projectile does not ignite 911 provides for effective illumination for 40 seconcis or less Projecti
47、le provides effec- tive illumination ror more than 40 seconds but less than 60 seconds Code No. 03020 03021 03022 03023 03024 03025 03026 Sample Size (60 or SO) Paragraphs 4 . 2.3.3.1 and 4,2.3.3.2 ACC REJ NOTE 1 O 1 1 2 2 3 SEE NOTE 2 1 2 4 5 Note 3 7 8 Note 3 Provided by IHSNot for ResaleNo reprod
48、uction or networking permitted without license from IHS-,-,-Note 1: The lot shall also be rejected if in a sample of 60 or 50 rounds a total of seven or more Major defects is encountered. Note 2: The lot shall also he rejected if the percent defective for fuze ballistic burning time as conpiited wit
49、h the use of MIL-STD- 414, Section B, Table B3, AQL 11.0 percent, exceeds the maximum allowalile percent defective for each setting. exceeds the timing requirernents specified, and the round functions properly in all respects with the exception that the “effective illumination time is less than sixty (60) seconds because the illuminant and parachute assen
