1、. MIL-C-6OO28C (PA) Amendment 1 30 Janmary 1976 -. MILITARY SPECIFICATION CARTRIDGE, 81MM, SMOKE, WP, M375 AND M3j5A2 ASSEMBLING, MARKING AND PACKING This Amendment forms a part of Military Specification MIL-C-60028C (PA) dated 4 April 1969. Wherever “M375“ appears; add Iland M375.A2I1. Wherever i18
2、88526411 appears, add “and 9240g531f. -. Delete 11M71AlE11f Percussion Primer wherever it appears and substitute 1fM71A21t. Paragraph 2.1, Paragraph .2-.1, add the following: Delete “ET-888 5264 - Equipment Tabulation“. “INSPECTION EQUIPMENT DRAWINGS P9233991 - Inspection Device 81MM Mortar (Vert) P
3、9233992 - Inspection Device 81MM Mortar (Horiz) P9242815 - Block Diagram Electrical - . 7257965 - Wear Limit Check Gage 6518071 - Profile and Alignment Gage 6518072 - Alignment Check Gage 9221731 - Strength Obturating Ring -Heat Weld opt. Test/Procedure Delete paragraph “3.6 Strength of heat weidtf
4、in its entirety. Paragraph 4.2.2.6 Cartridge, Crttical defect 112. Ignition cartridge missing or inverted“; and substitute “Test, dwg. P9233991, P9233992 and dwg. P9242815“. delete ltVisuallf .* FSC: 1315 THIS DOCUMENT. CONTAINSPAGES I Provided by IHSNot for ResaleNo reproduction or networking permi
5、tted without license from IHS-,-,-MIL-C-6O28C (PA) Amendment 1 . . - Paragraph 4.2.2.6 Cartridge, delete Critfcal defect 4. !*Fin broken or distorted“ and substitute lFins bent or damaged, or cartridge housing cracked“. Paragraph 4.2.2.6 Delete %5tical defect 5. Warning label missing or unidentifiab
6、le. . . .i .Visual“ Add ltSpecial defect, 100 Percent Inspection a. Warning label missing or unidentifiable. . . . . .Visual11. Paragraph 4.2.2.6 Cartridge, Major defects 108 and 109, delete Ilfails to meet disassembly torque1 and supstitute, for both defects, Ilfails to meet assembly torque without
7、 movingt1. Protective bag. . . . . .Visual 06036l in its entirety. “on red endtt and substitute Ifon red end or green end (as Paragraph 4.2.2.6 Cartridge, delete Major defect “114. Paragraph 4.2.2.6 Cartridge, Major defect 116, Delete . applicable)ll. Paragraph 4.2.2.7 Add Major defect 11104. Increm
8、ent shells bind on inside diameter of container,Visual- Manual 0700411. Paragraph 4.2.3.2, Delete “Equipment shall be in accord- ance with 4.2.4“ and substitute ?lInspection equipment shall be in accordance with dwg. 6518071, dwg. 6518072 and dwg. 7257965“. Paragraph 4.2.3.3 Proving ground test Dele
9、te “(a) Horizontal range less than 80 percent of mean horizontal range but not less than 70 percent of mean horizontal range (see 3.3.4.1), Special, Code No. 06018t1 in its entirety. Paragraph 4.2.3.3 Proving. ground test Delete “(e) Horizontal range less than 70 percent of mean horizontal range“ an
10、d substitute “(e) Horizontal range less than 80 percent of. mean horizontal range (calculated without the short rounds )It. Delete the following: ., Paragraphs 4.2.3.3.1 an4 4.2.3.3.2 I “The dispositfon of any lot, having cartridges with special Clefects, shall be made in. accordance with paragraph
11、6.6“. 2 of 6 t I I I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-6002C -(i 13 W 9997906 033Lt981 5 W MIL-C-60028C (FA) - Amendment 1 - Paragraph 4.2.3.3.2 Delete Ia sample of fifty cartridges from each lott1 and substitute Ia sample of fort
12、y-eight (48) samples from each lot“. Paragraph 4.2.3.5, 8885264 or 92409531t. - In addition, delete !using test equip- ment in accordance with paragraph 4.2.4I and substitute “using test equipment in accordance with drawing 9221731“ . Delete t3.611 and substitute “dwg. Paragraphs 4.2.4, 4.2.4.1, 4.2
13、.4.2 and 4.2.4.3, Delete these paragraphs in their entireties and substitute the follow- ing: tf4.2. 4 Inspection equipment.-The inspection equipment re- quired to perform the examinations and tests prescribed in this sectLon is identified under. the “Method of Inspection“ head- ings in 4.2.2.tt Del
14、ete paragraph 4.3.1 114.3.2 The cartridges shall -be fired,from a standard 81MM mortar One half of the sample llProving groundf1 and substitute the following: Proving ground test.-The test shall be performed at a Government Proving Ground in accordance with Proving Ground Acceptance Test Procedure S
15、upplement CR 812. at an elevation of forty-five degrees. cartridges shall be fired at charge one and the other half at . charge nine. All fuzes shall be set for superquick function- ing. The individual velocities, pressures, deflections and ranges shall be recorded .on the firing record. Observation
16、 - shall be made for misfires and duds, and shall be recorded. In the event of a misfire, the primer and ignition cartridge shall be removed and forwarded to Picatinny Arsenal. primers and ignition cartridges shall not be disassembled by the.proving ground. Shou1d.a premature burst or metal parts se
17、paration occur, a photograph shall be taken of the evidence and attached to the firing record. standard deviations and arithmetic averages shall be calcu- . lated and recorded. Range probable error shall be calculated and recorded. firing shall also be recorded. - Misfired The vei-ocity and range Te
18、mperature of the day, weather and the time of . .- I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-OO (PA) Amendment 1 . Hawk radar shallbe sed to observe for metal parts sepa- In these ration, unobserved short rounds and unobserved duds, eve
19、nts, an ana1ysi.s should be made- of the radar data and should be noted on th firing record. This shall include a comparison of time of flimt of the unobserved rounds.with that of the normal rounds. Prints of the radar traces of those rounds, and prints of the preceeding and succeedang rounds, shall
20、 be attached to the firing record. Data from ballistically acceptable lots . may be discarded. Smear camera shall be used to photograph all samples. The camera shall- be-positioned to pick up each round just outside the second veloety coil. dud, short round OP any other abnormal performance occur, a
21、 photo print of these rounds, and prints of all the other rounds . in that particular charge zone, shall be attached to the firing record. Film from acceptable lots may be discardedn. Paragraphs 6.2, 6.3, 6.3.1, 6.3.2, 6.3.3, 63.4 and 6.3.5, Delete these paragraphs in their entireties and substitute
22、 the followhg : . _- Should an unobserved “6.2 Inspection equipment designs.-Inspection equipment designs are of two types-Government Special Inspection Equip- ment (SIE) designs and Contractor Designs. . SIE designs are designated by drawing numbers (on the Equipment Lists referenced on the Equipme
23、nt Tabulation) or (under the nMethod of Inspectionn headings in-Section 4). inspection equipment is assigned to the Contractor. Equipment to be designed by the Contractor is designated IfCDII. The Contractor need not furnish any design when a complete Govern- ment SIE design is provided. Unless othe
24、rwise specified, however, the Contractor may submit alternate or modified Con- tractor designs of SIE in accordance with 6.2.2 and 6.2.3, should he elect.to do so. Design responsibility for all other 6.2.1 SIE desigris.-SIE designs may consist of any of the a. foklowing : Detailed drawings which com
25、pletely depict all info&a- tion necessary for the fabrication and use of the item of in- spection equipment. 4 of 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-6OO28C (PA) Amendment 1 b. A source control drawing or a specifieatton control .
26、c, An envelope drawing, as defined in MIL-STD-100, which drawing as defined in MIL-STD-100. establishes the criteria which a detail design shall meet. When envelope drawings are specified, the Contractor shall prepare designs which comply with the criteria therein. 6,2,.2 Contractor designs.-Contrac
27、tor designs are required for a1 inspection equipment for. which SIE designs are not specified, and may include commercial equipment which the Con- tractor proposes to use, (Comercial equipment is defined as unmodified equipment which is cataloged and available for pur- chase by the general public),
28、Contractor designs shall include appropriate operating instructions, calibration procedures and maintenance procedures. Commercial equipment shall be fully described by catalog listings or other means which provide sufficient information to permit identification and evaluation by the Government and
29、may include illustrations -and engineer- ing data. Designs shall be prepared for any special fixture(s) required to be used with -commercial -equipment, or with SIE de- signs, if no% otherwise covered thereby (See 6.2.1). Designs shall be of the category and form (per MIL-D-1000) specified in the Co
30、ntract Data Requirements Lists (DD Form 3,423). The Con- tractor is referred to MIL-HDBK-204, “Inspection Equipment De- sign“ for guidance. The specification number and the applicable five-digit defect code number (or other specific identifying n- formation) from Section 4 of this specification shal
31、l be refer- enced on each Contractor design, together with the component or assembly drawing number and revision letter to which the specific design applies , 6.2.3 Submission of designs, for approval.-Contractor de- signs shall be approved by the Government prior to fabrlcating or procuring.the equ
32、ipment: Designs shall be submitted for ap- -proval in accordance with the stipulations, time frame and dis- tribution specified in- the Contract Data Requirements List (DD Form 1423) or In the contract. Partial submission of inspection equipment designs is permissible and encouraged. However, the co
33、mpletion data for design review will be based on the date of the final submission of designs. Picatinny Arsenal design re- view. will nohally be accomplished within one month after re- ceipt. “ . 1 5 of 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,
34、-,-. . MIL-C-6OO28C Amendment 1 Dele.te: paragraphs “6 . 6 Special .defects, 6.6 . 1 Definition and 6 . 6 . 2 Disposition“ in their entireties and substitute “6 . 6 Special Defects.-See MIL-A-48078 (PA) - Military Specification - Ammunition, Standard.Quality Assurance Provisions, General Specificati
35、on For.“ . Para. 4.2.2.7, .dele.te Major: “103. Desiccant bag missing. . . . Visual 07003“ in its. entirety. Custodian: . Preparing Activity ARMY - PA ARMY - PA Project Number: 1315-A-O98 *US. GOVERNMENT PRINTING OFFICE: 1977-703-030/1812 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
