1、MIL-P-b3V23B (V) 13 m 77777Ob 0350137 b 5 37.05 I MIL-P- 6 3 4 2 3 B (AR) AMENDMENT 4 18 February 1986 SUPERSEDING AMENDMENT 3 30 August 1985 MILITARY SPECIFICATION PROJECTILE, 105MM, APFSDS, M833 METAL PARTS This Amendment forms a part MIL-P-63423B (AR) , dated 16 approved for use within the and Ch
2、emical Command and is Departments and Agencies of PAGE ASSEMBLY of Military Specification February 1984, and is U.S. Army Armament, Munitions available for use by all the Department of Defense. 2 2.1.2 (U) Other Government documents, drawinqs and publications. Under drawings: Delete: Add : “9312758
3、- Rubber, Silicone, J-RTV“ “9335983 - Rubber, Silicone, RTV 9335984 - Rubber, Silicone, RTV“ Add: “9395742 - Projectile, 105MM, APFSDS, M833 (For 9395744 - Ctg/Projectile 105MM, APFSDS-T, M833 Renovation Only) for Renovation Only)“. (SOP PAGE 5 3.4.1, Add the following after the first sentence: “Aft
4、 end Sabot sections that break away from a Sabot segment out-of-bore shall be permitted provided that no tube damage results after these occurrences and provided that Target Impact Dispersion requirements are met.“ PAGE 8 (See Fig i). 4.3.1 (U): Submission. Under obturator: Delete “9328522“ and subs
5、titute “9335993“. AMSC N/A 1 of 10 FSC: 1315 DISTRIBUTION STATEMENT A. Approved for public release, distribution is unlimited. II A. 21 c Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-b3423B (Lo 13 777970b 0350138 8 MIL-P-6 3 4 2 3B (AR) AMEN
6、DMENT 4 Submission. Under Part description, delete Rubber, Silicone, JRTV in its entirety and substitute: “Rubber, Silicone, RTV 9335983 or (Seal Specimen) 9335984 a. Tensile streng th and elongation 8 (2 plaques) b. Hardness 8 (2 plaques)“ PAGE 9 4.3.1, under Projectile, 105MM, APFSDS, M833, Delete
7、 “125“ and substitute “145“. PAGE 11 Table I, First Article Inspection, under obturator, Delete “Dwg . 9328522“ and substitute “Dwg . 9335993.“ PAGE 12 Table I: Delete Rubber, Silicone, JRTV in its entirety and substitute: “Rubber, Silicone, RTV (Dwg. 9335983 or 9335984) Tensile streng th and elonga
8、tion 8(a) 3.1 4.5.6.1 Hardness 8(a) 3.1 4.5.6.2“ Note (a) : Delete “J-RTV“ and substitute “silicone Fifst Article Inspections, under Core, Windshield, Sabot rubber, RTV“. and Seal Assembly, Add “Lubricant Weight, Min. 5 3.2 4.5.5.7“. PAGES 13 & 14 Table I: First Article Inspection, under Ballistic T
9、esting next to target impact dispersion, Add “ (First quarter life of midlife tube)“. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-1 MIL-P-b3423B (4) 13 m 9799906 0350139 T MIL-P-63423B (AR) AMENDMENT 4 First Article Inspection, under Ballistic Te
10、sting, Add the following: “Target impact dispersion (cold-new tube) 20 3.4.3 4.5.9 Erratic Flight 3.4.2 Muzzle Velocity (information only) Pressure (information only) “ . Metal parts security 3.4.1 * Table I - First Article Inspection: After “Metal Parts Security“ (5 places): Add “(a) * Table I - Fi
11、rst Article Inspection: Under notes: Add “(a) Inbore failure, special defect (see 6.9.3)“. PAGE 17 4.4.2.1 Major 133, After “AFT SADDLE RADIUS“, add “(2 places forward and aft of rear saddle outside DATUM)“. PAGE 18 4.4.2.1, Add M.ajor 141 as follows: “141 Distance to forward edge of aft bourrelet b
12、etween saddle and front face of Sabot 0.40% 3.2 Gage“ PAGE 27 4.4.2.6: Under Drawing number, Delete “9328522“ and substitute “9335993“ Add Major inspection 110 as follows: “110 inside diameter 0.40% 3.2 Gage“ Add Minor inspection 203 as follows: “203 Identification marking 0.65% 3.2 Visual“. PAGE 31
13、 4.4.2.10: Core, Windshield, Sabot and Seal Assembly: Delete Major Defect 108 in its entirety. 1. 3 .I . I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-b3423B (4) 13 7779706 0350LLiO b MIL-P-63423B (AR) AMENDMENT 4 * ) PAGE 32 4.4.2.10: Core
14、, Windshield, Sabot and Seal Assembly: Major Defect 117: Delete “(g)“ undef No. of Sample Units. Major Defect 118: Delete “(g)“ under No. of Sample Units. Add: “Major Inpsection 119 as follows: “119 Lubricant Weight, Min 3(f) 3.2 4.5.5.7“ Notes, Delete (f) and (9) in their entirety. Notes, Delete (h
15、) in its entirety and substitute: “(f). each shift. machine per hour with at least one band after each batch.“ Three sealing bands per machine at the beginning of From then on, a minimum of three bands per PAGE 34 Major 102, under Examination or Test, Delete “Obturator torque test, min., max.“ in en
16、tirety and substitute “102 obturator torque test, max. 0.40% 3.2 4.5.7.1“. Add Major inspectian 115 as follows: “115 obturator gap, max. 0.40% 3.2 Gage“. * 4.4.2.13 Projectile, 105MM, APFSDS, M833 Destructive Lot: Add the following special defect: “Special 1 In-Bore Failure 3.4.1 4.5.9/6 . 9 . 3 II
17、4.4.2.14 Projectile, 105MM, APFSDS, M833 (For Renovation only): Add new paragraph 4.4.2.14, Page 35A (included). PAGE 40 Add 4.5.5.7 as follows: “4.5.5.7 (U) Sealing band lubricant weiqht. The sealing bands selected shall b e weighed on an appropriate scale prior to assembly and application of lubri
18、cant. These sealing -1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, MIL-P-b3423B (LI) 13 79777Ob 03501LiL MIL-P-634 2 3B (AR) AMENDMENT 4 bands shall then have lubricant applied in the manner that is used for production with the sealing bands be
19、ing fixtured on a mandrel or other appropriate device. After having the lubricant applied and dried, these sealing bands shall be reweighed. The weight of the lubricant applied to these sealing bands shall meet the requirement of dwg. 9342931. Should any sealing band lubrication weight fail to meet
20、the drawing requirement at any inspection point, then all sealing bands assembled since the last acceptable inspection shall have a second application of lubricant applied to them. sealing band. used for this inspection and still in conformance with drawing requirements may be used for pro j ect i l
21、e assembly . .Any * 4.5.5.7 (U) Sealinci band lubricant weiqht. Delete sentence 5 in its entirety and substitute: “Should any sealing band lubrication weight fail to meet the drawing requirement at any inspection point, then the lubricant on all sealing bands assembled since the last acceptable insp
22、ection shall be removed and the correct application shall be reapplied .“ 4.5.6.1 (U): Delete “Tear strenas 4.5.6.1.1 (U) Tear strength. Delete in its entirety. 4.5.6.1.2: Delete drawing numbers in two places: Delete: “drawing 9312758, Note 1.D.“ and substitute: “drawing 9342924, Note 9“. Delete: “o
23、n drawing 9312758“ and substitute: “on drawing 9342924“. PAGE 41 4.5.7.11 third sentence, Delete in its entirety and substitute: applicable torque is applied shall be cause for rejection of the projectile.“ “Any obturator that fails to turn when the maximum PAGE 43 4.5.9 (U) Ballistic tests. h.: Del
24、ete “The center of impact“ from the third sentence and substitute “The group center of impact“ . J. I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-b3q238 (4) 13 I 7777906 0350392 T W MIL-P-63423B (AR) AMENDMENT 4 PAGE 44 4.5.9 (U) Ballistic
25、tests. Delete j.1. in its entirety and 1 substitute the following : nl. Boresight the weapon on the center of target and apply superelevation utilizing a gunnery quadrant. Fire spotter rounds to assure the weapon is zeroed on the target center. The group center of impact for a minimum of three conse
26、cutive rounds within a one meter square of the target - center is required. Finalize reticle setting on aiming stake. After the target has been spotted for a shot group, every effort should be made to keep the elevation and deflection of the weapon the same for the shot group by relaying on the aimi
27、ng PAGE 45 4.5.9, add the following: IIU. (U) -Aft end Sabot sections that break away from a Sabot segment out-of-bore shall be considered acceptable provided that Target Impact Dispersion is acceptable and no tube damage results after these occurrences. Aft end Sabot breaks (verified by smear photo
28、 prints) which do affect performance shall be reported and treated as failing metal parts security requirements . Article only) orthogonal camera coverage shall be provided for each round and spin measurements shall be recorded for information only.“ “V. (U) During cold temperature new tube firings
29、(First PAGE 47 4.5.9.4 (U) Boresight and superelevation: Add new paragraph 4.5.9.4 as follows: “4.5.9.4 (U) Boresiqht and superelevation. Actual superelevation of the weapon shall be measured and recorded for all target dispersion test phases. This requires that the weapon be zeroed at the beginning
30、, end and during any extended breaks (30 minutes or longer) in target impact test phases using a conventional collimated M26 Pye Watson boresight or equivalent. Record the weapon elevation and azimuth which aligns the boresight zero on the target center. Then record weapon elevation and azimuth data
31、 for all test and calibration phases. The gun superelevation is the weapon elevation during the test phases minus the weapon elevation which produced a muzzle boresight on target i it Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-63423B (AR)
32、AMENDMENT 4 center. This data shall be obtained when using either a fixed mount or a service tank weapon system. information shall be recorded for information only and included in the ballistic test report.“ This PAGE 48 6.6.2, first sentence, Delete in its entirety and substitute: having no rounds
33、on the tube except proof rounds, a first quarter life tube as having no greater than 0.015 inch primary landwear and a midlife tube as having less than 0.030 inch primary landwear .“ “For the purpose of these tests, a new tube is defined as PAGE 49 * Add new paragraph 6.9.3 as follows: “6.9.3 (U) Sp
34、ecial defects. Any evidence of in-bore Testing breakup shall be classified as a Special Defect. shall be stopped and AMCCOM notified as soon as possible.“ PAGE 51 TABLE II, make the following changes: Under Target Impact Dispersion and next to -3S0F, +709 and 125-, add: “(First quarter life or midli
35、fe tube) At bottom of table add under First Article only “Tarmet Impact Dispersion - 35OF (New Tube) 20.“ Under First Article, Delete -total of “120“ and substitute “140“. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-U W v) =I W 4 O E n 2 E U r r-
36、 - .I- 3 .I rn a3 I I cz, J e cv cvm -a) mmmm s. 8 t d iF dp dpdpdp dpdpdpdp dp o O00 dpdp ulmulnlc) o 9 www O0 wDltll)D Oe * O0 .e rld O000 d o O00 h n v I . Un C u al U ELiCUI oumc u0 m c u &E 1Li .4 u0 Coa, o .& .( I .8 (35A) Provided by IHSNot for ResaleNo reproduction or networking permitted wi
37、thout license from IHS-,-,-MIL-P-b3LI23B (LI) 13 777770b 0350145 5 W a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-b3423B (9) 13 77777Ob 03501Lib 7 I MIL-P-634 23B (AR) AMENDMENT 4 The margins of this document are marked with an asterisk or
38、 vertical lines to indicate where changes (additions, modifications, corrections, deletions) from the previous amendment were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to
39、 evaluate the requirements of this document based on the entire content irrespective of the marginal notation and relationship to the last previous amendment. Custodian: Army-AR Preparing activity: Army-AR (Project: 1315-A770) 0U.S. GOVERNMENT PRINTING OFFICE: 1986-605-036/43021 1 Q: . I -I , Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
