ARMY MIL-P-50538-1970 PROJECTILE 155MM HE M449A1 LOADING ASSEMBLING AND PACKING《M449A1型155 mm高爆榴弹的装药》.pdf

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1、. . . . . - IIILITARY SPECIFICATION . . 1. SCOPE 1.1 ThLs assembling and as Projectile, date part PROJECTILE, 155MM9 :FE: M4Q9Al LOADING, .ASSEMBLING AND PACKING military specif icat5on covers the loading, packing for one type of projectile designated 155m1, HE: M449A. 2. APPLICABLE DOCUMENTS 2.1 Th

2、e folloxvbg documents of the issue in effect on of invitation for btds or request for proposal form a of this military specification to the extent specified herein. SPECIFICATIONS MILITARY Anmunition and Special Weapons, General Specif i- cation for -. MIL-A -2550 E dIL-1-45607 - Inspection Eaiiir -

3、 ,-.-dment Ac quis it ion, Ma int enanc e and Disposition of STANDARDS M LI TAR Y MIL-STD-105 I Sampling Procedures and Tables for Inspection by At tribut es (ABC-STD-105) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L-STD-453 I MIL-STD- - MIL-

4、STD-1235 - DRAWINGS U* S ARMY MUNITIONS F-7549275 F-8875850 D-8875900 C-8875901 PUBLICATIONS ARM? ET-8875850 MIL-P-50538 13 = 9977906 0328099 2 I 1. .: . : . MIL-P-50538 (MU) . MIL-STD-109 - Quality Assurance Terns and Definitions Sampling, Examination and Testing MI L-STD-286 - Propellants, Solid:

5、_. . . . - ? . InsP ec tion, Radiographic Lot Numbering of Amniunition Single and Multilevel Continuous Sampling Pro- cedures and Tables for I Inspec ti on by Attribut es - . .-. . . . . . -. . . . . - . . k: . . . . . . . . . . L. . - . . .:1: . l: :. . cowm Pallet for 155MM Projectile I Projectile

6、, HE, 155MM, M44gA1 Grenade, GP, Mb3A1 Container Assembly I Equipment Tabula tion (Copies of specifications, standards, drawings, and publica- tions required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the Contractin

7、g Officer.) part of this specificationxo the extent specified herein. nless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. 2.2 Other publications. -The following documents form a 2 Provided by IHSNot for ResaleNo reproduction or networkin

8、g permitted without license from IHS-,-,-. ._. . MIL-P-50538 13 7797906 0328100 5 W MIL-P-50538 (XQJ) -;:.: .-. CODE OF FEDERAL REGULATIONS . . . . . . _- . . . . . . . Title 49 - Transportation, Farts 0-190 (The Code of Federal Regulations is available from the (latest revisLon)“. ) Superintendent

9、of Documents, U. S. Government Printing Office, Wash5ngton, D. C. 204.2. Orders should specify, “49 CFR 0-190 3.1 NaterLal.-Materials and parts shall be in accor- VI dance with the applicable drawings and specifications . 3.2 Projectflee-The projectile assembly and components - shall comply with all

10、 requirements specified on Drawing (Dwg) F-8875850, al1 associated drawiags, and with all re- quirements specified in applicable specifications Check test for moisture and total volatiles cont,ent of propellant 5n :.:l: I ._. r . I ,.I . . I:r:; . I , I. I _ . 1 . I i: : r . * . . -. . . I,- - . -.

11、. . _. - . . . . .-. . - .- . _._._ . . . . . ._ . . . . . . . . . . . . . . . . . . -.- . . . ._ . . t: I .- .-. . .- . . . . .-. . . “ . . . . . . . . . . . . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I KIL-P-50538 (MU) NIL-P-5053B 13 97799

12、06 032810L 7 :.Y: 3.5 ._- - m*, “1 VI ILlIlU11.l. LA22 cracks, p-i divi- fabricate( rfianner. They shall be free of burrs, chi-os. sham eriges, . .- 0, mi- grease, - -8 rust;, c VVLJ v nark . . - . . . 4 -j nojections, unblended radii; sur?ace defects, the parts be contaminated by the cleaning ap-pn

13、fc rior surface coatings shall be continucus except LW:.?I.:.“. F.: . ._ . . . - I . . . . - . . . . - . -. . - . - . . . . . . . . . . . ?- . . . . - . . s I- . C L. . b -. , . ? -.- AvLa UIL W11G quaiicy assurance provisions specified in this specification. b. Drawing and specifkation number and C

14、I+-P fn- . - . . -._ . .a - . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. . . . ._ . . . . - . . . .- . . . . . c, A statement that all material purchased by the contractor ineets requirements, when such material is controlled by Government or

15、commercial speciftcatiorls referenced in any of the contractual docvments, and that certb5a“ts of confor- mance are on file and available for review. d. Xumber of items in the lot, e. Date submitted. The certificate shall be signed by a responsible agent of the certifying organization. The Lnitial c

16、ertifLcate submitted shall be substantiated by evidence of the agents authority to bind his principal. will not be requtred with subsequent certificates unless, during the course of the contract, this authority is vested Ln another agent of the certifying organization, Substantiation of the agent s

17、authortty 4.2 Flrst article inspectlo5 (See 6.1) 4.2.1 Submission.-Testing shall be conducted on the . sample quantitj-es specified hereh beginning with the first lot produced and continuing until three (3) consecutive lots have passed the acceptance criterla specLfied. Sampling for these tests shal

18、l be as specified Tn 4.2.3. Thereafter, sampling plans shall be in accordance with 4.3.3.6.2, (Regular production). The contractor shall subrn5.t the sample projectiles to a Govern- nient proving ground designated by the Contracting Officer for testing in accordance with 4.2,3, assemblies shall be t

19、he same as will be used Ln production and shall be obtained from the.same sources of supply. Prior to submission, the sample shall be inspected by the contractor to the degree necessary to assure that it conforms to the require- ments of the contract. shall be selected by the Government inspector. p

20、rovisions shall also apply whenever a lot is ballistically rejected or a lapse in production exceeds ninety (90) days, or whenever a change occurs In manufacturing process, material used, drawing, specification or source of supply as to significantly affect product uniformity as determined by th Gov

21、ernment. Prior to submission, the contractor shall inspect the sample to the degree necessary to assure that it conforms to the require- ments of the contract and submit a record of this inspection with the sample. A sample contaLning known defects will not be sub- mitted unless specifically authori

22、zed by the Contracting Officer. All materials, parts and All first article samples for these tests First article 4.2.2 Radiographic inspection of projectile (for engtneer- ing information only). -Prior to forwarding the projectiles to the proving ground for ballistics testing, as specified in 4.2.3,

23、 they shall be subjected to radiographic examination for engineer- . . . . . . . . . I._ . . . -i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-hg Lnfornistion only. cai!pleted assembly with lifting plug secured. The projec asse:r.bly shall be radl

24、ograph5cally examined for loose Sta missi2g offset plate, missing suppcrt plate, and ga2 betw offse2 plate or forward plate assembly and grenade, and presece of safety cllps. (Saety clips shmild not be pr Examiration shall be as specified in 4.b.5. sujeztzd to this .examination and theLr radiographs

25、 shall suita3ly xarked to perniit filtixre reference. Radiography shall be performed on Projectiles the tile cks, e en sesen be t 4.2.3 Ballistic functfoning (See 3.4).-The Government inspector shall select twelve (12) projectiles from each lot to be subJected to fi-rst article inspection. will be s

26、ubjected, by the Goverrinient, to the followin ba1lLsti.c tests, in accordance with the methods specified in 4.t.G. Three (3) of these projectiles are for proving ground replacement. Projectiles Tor ballistics tests shall be radiographed as specified in 4.2.2. These projectiles k.2.3.1 tested at Zon

27、e 1. (See 4.4.6.1). G.2.3.2 teste at Zone 7. (See 4.4.6.2). b.2.3.3 tested at Zone 8 (safety phase). k.2.3.4 -iall be rejected if the ballistic test results for that lot Three (3) of the sample projectiles Three (3) of the sample projectiles Three (3) of the sample projectLles (See 4.4.6.3). RejectL

28、on,-The lot represented by the sampie meveal any one of the following defects: shall shall shall be be be a. Any premature burst occurs (See 6.6.2) Code No. 01001. b. Two (2) or more projectiles fail to function satisfactorily (excluding fuze malfunctions) (See 6.6.1) Code No. 01002. c. Any separati

29、on of metal parts occurs prior to Code No. 01003. A total of fifty-four (54) or more grenade in- occur (See 6.7.3) (Not applicable to safety LnitLation or“ the time fuze. d. No. 01004. hous irg bursts phase firings) Code G . . - . . . . . I . . . . . . . . t:. ! : . i . .- , . . . -. -. . , . . . i

30、. . . 1.11:;:. I . . . -. . - - . r. . ,.I. , . . . . I . I . e p . , . . . . . . . ,. t:.: . . p.-:.:= . . . . ._.e _- n Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. e. A total of twenty-five 25) or more grenades fail to function satisfactoriiy

31、 (See .7.i) (exciusing in- . . . . :Y.:. housing bursts). (Not applicable to safety phase firings) (See Note below). Code No. 01005. . . . . . . . . . . NOTE: of that type of grenade defect in %he cumulative results of the six (6) rounds tested as Specified in 4.2.3.1 and 4.2,3.2.1 If any grenade ai

32、r detonations (See 6.7.2) occur in two (2) or more proectile firings (regardless of the number of air detonationsj, such air detonations shall be considered as grenades failing to function satisfactorily. In-the event of rejection, the Government reserves the right to require the contractor to take

33、corrective action and submit a new first article quantity. ted, the contractor is not authorized by the Government to proceed with regular production unless otherwise directed by the Contracting Officer. DeTects 01004 and 01005 refer to the total occurrences Until the first article quantity is accep

34、- 4.2.3.5 Projectile replacement. -The provisions of 4.3.3.6.4 shall also apply to first article ballistlc func- tioning tests. 4.2.3.6 Retest.-The provisions of 4.3.3.6.5 shall also apply to first article ballistic functioning tests. 4.2.4 Additional inspections to be perormed . -Components will be

35、 subjected by the Government to any or all the examina- tions or tests specified in 4.3 of this specification and any or all requirements of the applicable drawing. 4.3 Inspection provisions. 4.3.1 Lot forn in this specification is aerlned as an e!: collectic,? of units of pr -. I . . :. . . . . . C

36、. . . . . , . *. . I . . _._ . . . . , “ . I. . L. FI: I_. k:;: b * . . . . . . . - . ? . ? . . , -.- . . . . . . tation. -The term II inspection lot“ as used . ;sentially homogeneous iodUCZ from which a representatfve sample is drawn and insbected to determine conformance with applicable requiremen

37、ts. only that quantity of units from which the sample was drawn and shall not be construed to represent any prior or subsequent quantities presented for inspection. Homogeneity shall be con- sidered to exist provided the inspection lot has been produced by one manufacturer, in one unchanged process,

38、 in accordance The sample selected shall represent , , -. . with the same drawing, same drawing revision, same specif %cation :1:1:,: . * and same specification revision and -. - o-.- -L-. - . -. . complies with the provis ions . . _ . lU1 su“InlsslOI Or product as specified in MI,-STD-105. Changes

39、I I . . 1: :_:;:;:. L . . I . ST. .-, ,. . E. . . . I . . . . I . 7 . I . . r . . . :I: : : . : . . . . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-to process, specification, or drawing not affecting safety, pcrformance, interchangeability, or st

40、orage, as determined by the Goverment, shall not be deerned to alter the homogeneity of an inspection lot, All material submitted for inspectton In accordance with this specification shall comply with the i:. homogeneity criteria specified herein regardless of the type of sniwling procedure which is

41、 being appliec! to determine con- fomance with requirements. Lot numbering, as required, shall be in accordance with MIL-STD-iX68. Each inspection lot shall contain: a. nm nuf a c tur er. b. Body assemblies of one lot interfix number from one Hardware components of one lot interfix number from Loade

42、d grenades of one lot interfix number from one Expulsion charge propellant of one lot number frorn Fuzes of one lot interfix number from one manufacturer. Projectiles of one zone weight only. (See 4.3.3-3). NOTE: Only those greulade lots which have successfully completed the functioning test indicat

43、ed in the specification covering the loading of the grenade shall be assembled into the body assembly. ng subparagraphs shall be performed on tnspection lots applicable paragraph headings. (and major defects, when so specified) shall be 100 percent. Sampling plans for major and minor defects shall b

44、e Tn accordance with MIL-STD-105 except that continuous sampling plans in accordance with MIL-STD-1235 may be used if approved by the Government. Instead of applying the AQLs designated herein to the groups of major and minor defects listed, the contractor may elect to apply AQLIs to individual defe

45、cts using an AQL of 0.40 percent for each rnajor defect and an AQL of 0.65 percent for each minor defect. When this method -is elected, it shall be applied to all of the major and minor defects listed Ln the applicable subparagraph of this section, except where 100 percent inspection is specified, a

46、nd be d.ocwnented as part of the contractors inspection system. Equipment necessary for the performance of the inspections listed shall be in accordance with 4.3.4. one manufacturer. manufacturer (See 4.3.3, i) one manufacturer (See 4.3.3.2). c. d. e. f. : 4.3.2 ExaminatLon.-The examinations listed

47、in the follow- Inspection for critical defects See 4.3.1) of the components.or assemblies designated in the 8 - . . -.-.-. . . . . . . . . . . , . . . . ,. . . , . . _ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I MIL-P-50538 13 m 977790b 0328LL 2 m . . . . . . . . impact area. specified zones in accordance with the applicable procedures. A record shall be made for each round fired and shall include an accounting for the defects listed in 4.3.3