1、 1. SCOPE MILITARY SPECIFICATION Projectile, l52MM, Slug, Proofing Metal Parts Assembly MIL-P-O(MJ) 30 November i966 1.1 Th,s specification is the applicable detai- specification for Projectile l52MM, Slug, Proofing, Metal Pasts Assembly. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the is
2、sue in effect on date of invitation for bids or request for proposal, farm a part of this specification to the exbent specified herein. SPECIFLCATIONS Military MIL-A-2550 - Ammunition and Special Weapons, General MIL- P- 10025 MIL-R-11073 Specification for Inert Ammunition Components, General Specif
3、ication for - PackZng and Marking for Domestic Shipment of - Rotating Band Blanks, Sintered Iron STANDARDS Federal Federal Test Method Standard No. 151 - Metal; Test Methods Military MIL-STD-105 . - Sampling Procedures and Tables for Inspection by MIL-STD-109 MIL-STD-129 MIL-STD-639 MIL-STD-1235 Att
4、ributes - Quality Assurance Terms and Definitions - Masking for Shipment and Storage - Surface Roughness Values Preferred for Army Ordnance Material - Single and Multilevel Continuous Sampling Psocedures and Tables for Inspection by Attributes ;HIS DWUMENT CONTAINS id PAGES. - - - Provided by IHSNot
5、 for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-60628 13 9777706 03L)0196 5 = MIL-P-o (MU) DPAWINGS Munitions Command - Projectile 152MM, Slug-Proofing Metal Parts Assembly - Pallet for Fixed and Semi-fixed Projectiles - Inspection Equipment List for Projectile
6、15m, Slug-Proofing Metal Parts Assembly Fi0535958 F-8889328 IEL-10535958 (Copies of specifications, standards, drawings and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.)
7、3. REQUIRFMENTS 3.1 General.- Materials, parts and assemblies shall comply with the requirements specified on the applicable drawings, referenced specifications and the following: 3.2 First article sample.- Requirements for submission of first article sample by the contractor shall be as specified i
8、n the contract. 3.3 Heat treatment or stress relief of Projectile Body.- The heat treatment or stress relief applied shall be uniform throughout each lot of components and shall be so conducted as to produce in any component the mechanical properties specified on the applicable drawings. 3.3.1 Hot f
9、orged-heat treat method of manufacture (if applicable). - Projectile body forgings manufactured by this method shall be subjected to heat treatment to attain required mechanical properties. forgings shall consist of heating above the critical temperature, not to exceed i600 degrees Fahrenheit (F), f
10、ollowed by an oil quench. piece shall be tempered without delay at a temperature above TOO degrees F., suitable to produce required mechanical properties. furnace, the projectile forging to a temperature of not more than TOO degrees F., after which cooling may be accelerated by water spray or simila
11、r means. The heat treatment of After quenching, the After removal from tempering shall be slowly cooled in air (forced air permitted) 3.3.2 Cold shaping method of manufacture (if applicable).- Cold shaping of projectile bodies shall be so accomplished as to produce the mechanical properties specifie
12、d. TOO degrees F., minimum, following the final forming operation during which time plastic flow takes place. The minimum soak time at or above minimum temperature shall be established which will produce mechanical properties specified by the applicable drawing. The projectile body shall be stress r
13、elieved at a temperature of 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-60628 13 m 7797706 0340177 7 m MIL- P- 60628 (MU) 3.4 Band seat.- Prior to application of rotating band blank, the band seat of the body shall be clean and free of oi
14、l, grease, dirt, rust, and other foreign matter. band seat after knurling. Shot or sandblasting shall not be permitted for cleaning the 3.5 Protective coating.- Protective coating shall be in accordance with the applicable drawings and the specifications referenced thereon. 3.6 Workmanship.- The req
15、uirements for workmanship are as specified on the applicable drawings, referenced specifications and the following: 3.6.1 Metal defects.- All components shall be free from cracks, splits, seams, laps, cold shuts, inclusions or any similar defect. 3.6.2 - Burr.- No component shall have a burr which m
16、ight interfere with the assembly or function of the item or which might be injurious to personnel handling the item. 3.6.3 Foreign matter.- All parts and assemblies shall be free of chips, dirt, grease, oil, rust or other foreign matter. 4. QUALITY ASSURANCE PROvSIONS 4-1 Responsibility for inspecti
17、on. - Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to the Government
18、. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Quality Assurance terms and definitions. - Reference shall be made to MIL-STD-109
19、 to define terms used. 4.1.2 4.2 First article smmle. Inspection.- Inspection shall be in accordance with MIL-A-2550. 3 _- :Ar =. - .- . E *. .c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-60628 13 m 7777706 034019 7 M m-p-60628 (MU) 4.2.1
20、Initial production sample.- At the beginning of regular production, a sample shall be submitted in accordance with contract requirements and shall consist of i5 slug proofing metal parts assemblies as follows: 5 Slug proofing metal parts assemblies, complete, including paint 5 Slug proofing metal pa
21、rts assemblies, complete, except paint 7 each bodies, prior to banding, including rotating seat 5 each rotating band blanks The sample shall be manufactured in the same manner, using the same materials, equipment, processes and procedures as will be used in regular production. parts and materials, i
22、ncluding packaging and packing shall be the same as used in regular production and shall be obtained from the same source of supply. at source, the sample shall be inspected for all the requirements of the drawings and specifications at a Government laboratory or such other facility specified in the
23、 contract. All 4.2.1.1 Examination and test. - After inspecti on and provisional acceptance 4.2.1.2 Initial production sample failure.- Failure of the sample to comply with the requirements of the drawings and specifications shall result in sample disapproval, 4.3 inspection provisions. 4.3.1 - Lot.
24、 4.3.1.1 Submission of product.- The product shall be submitted in accordance with MIL-STD-105 or MIL-STD-1235, as applicable. 4.3.1.2 Forging lots.- Forging lots shall contain bodies from not more 4.3.1.3. Cold shaping lots. - Cold shaping lots shall contain bodies from 4.3.1.4 Heat treatment lots.
25、- Heat treatment lots shall consist of bodies than one heat of steel. not more than one heat of steel. manufactured from forgings in accordance with 4.3.1.2 that have been heat treated in the same furnace at the same temperature and for the same length of time. After final heat treatment, forgings s
26、hall remain grouped for identity purposes until such time as the results of the tension test hereinafter prescribed indicate compliance with mechanical properties of the applicable drawing. 4.3.1.5 Stress relieved lots.- Stress relieved lots shall consist of bodies manufactured from cold shapings in
27、 accordance with 4.3.1.3 that have been stress relieved in the same furnace at the same temperature and for the same length of time. After stress relief the cold shapings shall remain grouped for identity purposes until such time as the tension test hereinafter prescribed indicates compfiance with m
28、echanical properties requirements of applicable component drawings. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-flIL-P-bObZB 13 0b 03LIOL O MIL-P-60628 (MU) 4.3.1.6 Miscellaneous lots.- Small lots, bodies manufactured from small heats of steel
29、or components that have become separated from previously delivered lots shall at the discretion of the supplier, be grouped into heat treatment or stress relief lots to which a miscellaneous lot nuniber shall be applied. lot thus constituted (either heat treated or stress relieved) shall form the ba
30、sis for the selection of samples for the tension test hereinafter prescribed. The 4.3.1,7 Projectile lot.- Heat treated or stress relieved lots of components that have complied with the mechanical properties requirements of the applicable component drawing, may be regrouped for assembly into project
31、ile lots, A projectile lot shall consist of projectile assemblies produced by the one manufacturer, under one contract, in one unchanged process, in accordance with the same drawing, same drawing revision, same specification and same specifica- tion revision. 4.3 2 Examination. - One hundred percent
32、 examination shall be performed for all critical defects. on a defect basis in accordance with the classification of defects contained herein, using the sampling plans con-bained in MIL-STD-105 or MIL-STD-1235, as applicable. An AQL of 0.25 percent for each major defect and an AQL of 0.40 percent fo
33、r each minor defect shall be used. be rejected. The Ordnance Standard Finish Blocks prescribed by MIL-STD-639 shall be used as a basis of comparison for surface roughness determination. Examination for major and minor defects shall be performed All nonconforming material shall 4.3.2.1 Body - Drawing
34、 F10535959 covering a detail of Drawing F10535958. Defeca; Method of Inspection CRITICAL None defined MAJOR 101. 102. 103. 104. 105. Metal defective Concentricity of rotating band seat with bourrelet Diameter of rotating band seat Location of rotating band seat Scoring or hurling missing from rotati
35、ng band seat 201. 202. 203. 204. Surface finish -roper 205. Burr 206. Foreign matter Angle on side of rotating band seat Flat on side of rotating band seat, max. Radii or chamfers missing or incorrect Gage Gage Gage Visual Vi sual Gage visua (See 6.1) visua (See 6.1) visual (See 6.1) Vi sual Visual
36、5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-60628 13 7797706 0340200 3 4.3.2.2 Metal parts assembly, Drawing Fi0535958 (before paint ) . Defect None defined MAJOR Method of Inspection 101. 102. 104. 103. 105. 106. 107. 108. 109. 110. 111.
37、 112. 113. ll4. MINOR 201. 202. 203. 204. 205. 206. 208. 209. 210. 207. Concentricity of rotating band with bourrelet Perpendicularity of rear face Diameter of rotating band Diameter, OUSide, d:n. Length from rear face to forward basic diameter in rear cavity Length from rear face to rear basic diam
38、eter in rear cavity Length from rem face to basic diameter on rotating band Length from bottom of rear cavity to face of thread Length of effective thread, min. Location of rotating band Width of rotating band Basic angle on rotating band Variation of wall thickness Metal defective Gage Gage Gage Ga
39、ge Gage Gage Gage Gage Gage Gage Gage Gage Gage Vi sual Diameter of forward cavity Diameter of undercut forward of thread (if applicable) Thickness of base Width of undercut forward of thread, max. (if applicable) Depth of undercut, front and rear of rotating band (if applicable) Width of undercut,
40、front and rear of rotating band (if applicable) Radii or chamfers missing or incorrect Surface finish improper Burr Foreign matter Gage Gage Gage Gage Visual (see 6.1) visua (see 6.1) Vi sual Vi sual 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
41、MIL-P-60b2 33 7999906 0340203 5 1-60628(u) 4.3.2.3 Metal Parts Assembly, Drawing Fi0535958 (after paint). Defect - CRITICAL None defined MAJOR Method of Inspection 101. Weight 102. 103. 104. Diameter outside, ma. 105. Pitch diameter of thread, min. Major diameter of thread, min. Thread( sj damaged o
42、r not full MINOR Approved scale Gage Gage Gage Visual 201. 202. Paint on threads 203. Paint not dry 204, 205. 206. Burr 207. Foreign matter Pitch diameter of thread, max. Protective coating inadequate or damaged Marking missing, incorrect or illegible 4.3.2.4 Pallet , Drawing F8889328. None defined
43、MAJOR None defined MINOR Gage Vi sual Visual Vi sual Vi sual Visual Vi sual 201. Pallet damaged (unserviceable) 202. Sleeve( s) missing 203. Improperly packed 204. 205. Strapping missing, loose or broken Marking missing, incorrect or illegible Vi sual Vi sual Vi sual Vi sual/Manual Vi sual 4.3.3 Ins
44、pection testing.- The following tests shall be performed in accordance with the provisions of 4.4. 4.3.3.1 Mechanical properties. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-60628 13 7977706 03i10202 7 I I MIL-P-60628(MU) 4.3.3.1;. 1 Hard
45、ness. 4.3.3.1.1.1 Forging lot. (not requiring heat treatment) - Each body in the forging lot (as defined by 4.3.1.2) shall be subjected to Rockwell Hardness test using the “C“ scale to determine the bodies to be selected for the tension test. 4.3.3.1.1.2 Heat treatment lots.- In order to determine u
46、niformity of heat treatment, each body in the heat treatment lot (as defined by 4.3.1.4) shall be subjected to a Rockwell Hardness Test using the “C“ scale, to determine the bodies to be selected for the tension test. 4.3.3.1.1.3 Stress relieved lots.- Twenty-five bodies from the first batch process
47、ed through the stress relief furnace from each stress relieved lot (as defined by 4.3.1.5) shall be subjected to a Rockwell hardness test using the “C“ scale to assess uniformity of the product. 4.3.3.1.1.4 Miscellaneous lots. - Miscellaneous heat treatment lots of bodies shall be hardness tested in
48、 accordance with 4.3.3.1.1.1. cold shaping bodies shall be hardness tested in accordance with 4.3.3.1.1.2. Miscellaneous 4.3.3.1.2 Tension test. 4.3.3.1.2.1 Forging lot (not requiring heat treatment) . - Two body forgings, one of the hardest and one of softest (as determined by 4.3.3.1.1.1) shall be
49、 subjected to this test. comply with the yield strength or elongation requirements of the applicable drawing shall be cause for rejection of the lot. a production control sample may be utilized to establish a hardness range. When a production control sample is used, the hardness range thus established shall be maintained throughout the forging lot. The size of the sample shall be determined by th
