1、 . . MIL-A-63993 (1) m 9999906 2033493 459 m MIL-A-63991 (AR) AMENDMENT 1 28 July 1995 MILITARY SPECIFICATION ALTERNATOR, TURBINE (AIR DRIVEN) This amendment forms a part of MIL-A-63991 (AR), dated 28 March 1988, and is approved for use by the U.S. Army Armament Research, Development and Engineering
2、 Center, and is available for use by all Departments and Agencies of the Department of Defense. PAGE 2 2.1.2, Under PRODUCT AND PACKAGING DRAWINGS, add the following: “11744334 - Alternator, Turbine (Air Driven) l. PAGE 3 3.3, Line 3: Delete “11722760“ and substitute I 1 17 2 2 7 6 O / 11 7 4 4 3 3
3、4 I . PAGE 4 3.3.3, Line 2: Delete “11722760“ and substitute IV 117227 60 / 11744334 I. 3.6.1, Line 1: Delete “11722761“ and substitute 1 1722 7 6 1 / 11 7 4 4 3 3 1 . 1 of 11 AMSC N/A FSC 1390 DISTFUBUTION STATEMENT A. Apprd for public relma8m; diatribution i8 unlimited. Provided by IHSNot for Resa
4、leNo reproduction or networking permitted without license from IHS-,-,- MIL-A-63993 (3) 9999906 2033494 395 MIL-A-63991 (AR) AMENDMENT 1 PAGE 6 4.3.1, Under PRODUCT AND PACKAGING DRAWINGS: Delete old drawing numbers and substitute new drawing numbers as follows: “OLD DWG. NO. 11722760 117227 66 1172
5、2765 11722764 11722763 11730640 11730641 11722761 11730642 11730643 11723110 11723111 11730638 11722762 NEW DWG. NO. 11722760/11744334 11722766/11744341 11722765/11744340 11722764/11744338 11722763/11744339 11730640/11744331 11730641/11744327 11722761/11744337 11730642/11744328 11730643/11744329 117
6、23110/11744332 11723111/11744333 11730638/11744330 1 1 7 2 2 7 62 / 1 1 7 4 4 3 4 2 . PAGE 8 Table I, Under PRODUCT AND PACKAGING DRAWINGS: Delete old drawing numbers and substitute new drawing numbers as follows: “OLD DWG. NO. NEW DWG. NO. 11722760 11722766 11722765 11722764 11722763 11722760/11744
7、334 11722766/11744341 11722765/11744340 11722764/11744338 117227 63/ 11744339“. PAGE 9 Table I, Under PRODUCT AND PACKAGING DRAWINGS: Delete old drawing numbers and substitute new drawing numbers as follows: “OLD DWG. NO. NEW DWG. NO. 11730640 11730641 11722761 11730642 11730643 11723110 11730640/11
8、744331 11730641/11744327 11722761/11744337 11730642/11744328 11730643/11744329 117231 1 O / 11744 332“. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-A-63771 (1) 9999706 20L3q95 221 MIL-A-63991 (AR) AMENDMENT 1 PAGE 10 Table I, Under PRODUCT
9、 AND PACKAGING DRAWINGS: Delete old drawing numbers and substitute new drawing numbers as follows: “OLD DWG. NO. 11723111 11730638 11722762 NEW DWG. NO. 11723111/11744333 11730638/11744330 11 722 7 62 / 1 17 4 4 34 2 I . PAGE 12 4.4.2.1: Delete “11722760“ and substitute “11722760/11744334“. PAGE 13
10、4.4.2.2: Delete “11722766“ and substitute “11722766/11744341“. Delete “11722760“ and substitute “11722760/11744334“. PAGE 14 4.4.2.3: Delete “11722765“ and substitute “11722765/11744340“. Delete “11722766“ and substitute “11722766/11744341“. PAGE 15 4.4.2.4: Delete 1111722764“ and substitute “117227
11、64/11744338“. Delete “11722765“ and substitute “11722765/11744340“. PAGE 16 4.4.2.5: Delete “11722763“ and substitute “11722763/11744339“. Delete “11722765“ and substitute “11722765/11744340“. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-6
12、3991 (AR) AMENDMENT 1 P- 4.4.2.6.1 ClAsmcATIoN CRITICAL MAJOR 101 102 103 MINOR 201 202 203 204 OTeP: PAGE 17 hRE Shaft and Magnet Assembly o(AuNl;rwwoATesI None defined Runout between magnet and shaft (2 axis) Runout of magnet faces to shaft Distance from aft face of washer to aft face of magnet Di
13、stance from aft shoulder of bearing surface to aft face of magnet Evidence of surface defects on raceways and datum A surfaces Magnet and shaft pull test Evidence of poor workmanship 4.4.2.6.1: Add new CD sheet, page 17a, as follows: 3.3 3.3 Gage Gage 0.40% 0.40% 0.40% O. 65% O. 65% O. 65% O. 65% 3.
14、3 3.3 1 174433 1 % Gage Gage isual 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-63991 (AR) AMENDMENT 1 PAfUGiUPH 1.4.2.7.1 PAGE 18 4.4.2.7.1: Add new CD sheet, page 18a, as follows: ?llLE Shaft OUALITY CONFORMANCE INSPECTION JASIFICATW RIT
15、ICALNone MAJOR 101 102 103 104 105 CLASSIFICATION OF CHARACTERISTICS EUW44TDNQITeBT defined Surface finish of bearing raceway Length of aft shaft bearing surface (. 085) Distance from aft face of washer to aft face of magnet Bearing surface diameter (2 places) Improper angle cut of aft “V“ 3.3 3.3 3
16、.3 3.3 3.3 3.3 3.9 Gage Gage Gage Gage Gage Gage Visual Islot width of aft “V“ slot of poor workmanship MINOR O. 40% 0.40% 0.40% O. 40% 0.40% O. 65% O. 65% 1 174433 1 r*I*ouM hqrkn- 4.4.2.8: Delete “11722761“ and substitute “11722761/11744337“. De let e 1 17 3 O 6 4 O I and subst it ut e 1 1 7 3 O 6
17、4 O / 1 17 4 4 3 3 1 . 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-63991 (AR) AMENDMENT 1 OF1 PISWTUPH PAGE 20 4.4.2.9.1: Add new CD sheet, page 20a, as follows: 11744328 mnawilglBILI 11744332 hupdmu.hod R.*rno QUALITY CONFORMANCE INSPECT
18、ION Gage Gage Gage Gage Gage Gage Visual CLASSIFICATION OF CHARACTERISTICS PARIGRAPH 1.4.2.9. I ZR1 T I CAI MAJOR 101 102 103 MINOR 201 202 203 204 The lTB Housing None defined Diameter of bearing cavity (. 1866) Height from inner housing base to shelf inner housing shelf diameter (1.128) inside fla
19、nge leg diameter inside diameter of bearing shaft cavity (. 1866) UIMC of cutouts incorrect Svidence of poor workmanship WMO WER SHEET1 0.40% O. 40% 0.40% O. 65% O. 65% O. 65% O. 65% 3.3 3.3 3.3 3.3 3.3 3.3 3.9 same 50 samples shall be used for all examinations. I. A new sample shall be drawn from e
20、ach lot, sampling run or i. If two or more defects are found, the housing lot shall be fixture. rejected or screened in its entirety of the defect(s) and be resubmitted for inspection. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-6379L (1)
21、 W 9999906 2033499 777 H PAUGWJW 4.4.2.10.1 cwsIFlcAlm CRITICAL MAJOR 101 102 MINOR 201 202 203 )T Es. MIL-A-63991 (AR) AMENDMENT 1 hRE End Plate MET 1 OF1 Ispvnaicerr Cl“CE ExAmalIONORTeST cIITE#A ?AIAOUM None defined Inside diameter of bearing cavity 50 3.3 Outside diameter of end plate 50 3.3 Ins
22、ide flange leg diameter 50 3.3 MMC of cutouts incorrect 50 3.3 Evidence of poor workmanship 50 3.9 PAGE 21 4.4.2.10.1: Add new CD sheet, page 21a, as follows: RLWNGHUBER ,1744329 ,1744333 - m-1181.1 ;age ;age ;age ;age risual . The same 50 samples shall be used for all examinations. . A new sample s
23、hall be drawn from each lot, sampling run or fixture. . If two or more defects are found, the housing lot shall be rejected or screened in its entirety of the defect (s) and be resubmitted for inspection. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
24、-,-,- MIL-A-63993 (3) 9999906 2033500 439 PIswyupH rmE LXllimU;MYBER SHImlffl 11744332 11744334 CFlUTK1( YwTIoNOATesT CWEW PM bnpDzhlu.(hod cRIT1c*LNone defined MAJOR 4.4.2.11.1Housing and Bearing Assembly YxTH0W-V CQEFC#WCE EOURMNT 101 Exceeds the .O18 maximum dimension 0.40% 3.3 Gage 102 Bearing n
25、ot fully seated 0.40% 3.3 Gage 201 Evidence of poor workmanship O. 65% 3.9 Visual MINOR NoTa MIL-A-63991 (AR) AMENDMENT 1 PAGE 22 4.4.2.11: Add new Major 104 as follows: “104 .O45 height . . . 0.40% . . . 3.3 . . . Gage“. 4.4.2.11.1: Add new CD sheet, page 22a, as follows: 8 Provided by IHSNot for R
26、esaleNo reproduction or networking permitted without license from IHS-,-,-. - 1.4.2.12.1End MIL-A-63771 (1) 999990b 2033503 355 = Plate and Bearing Assembly MIL-A-63991 (AR) AMENDMENT 1 co“cE CmTmn 0.40% O. 40% O. 65% PAGE 23 4.4.2.12.1: Add new CD sheet, page 23a, as follows: 11744334 PKxROBvT PIiy
27、QUpH 3.3 Gage 3.3 Gage 3.9 Visual OUALITY CONFORMANCE INSPECTION CLASSIFICATION OF CHARACTERISTICS .O18 maximum fully seated poor workmanship MINOR PAGE 24 4.4.2.13: Delete “117231151v and substitute “11723115/11744344“. Delet e 11 7 3 O 63 8“ and substitute 11 7 3 O 63 8 / 11 7 4 4 3 30 I . 9 Provi
28、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- flIL-A-b3993 (3) m 9999906 2033502 293 m PAIWCFUPH 4.4.2.14.1 MIL-A-63991 (AR) AMENDMENT 1 - Bearing-Flange Open Ball PAGE 25 4.4.2.14.1: Add new CD sheet, page 25a, as follows: cLAssIFIcITKlN CRITICAL MAJO
29、R 101 102 MINOR 201 QUALITY CONFORMANCE INSPECTION CLASSIFICATION OF CHARACTERISTICS nTKNOR1BT None defined Exceeds the .O18 maximum dimension Bearing not fully seated Evidence of poor workmanship F amurr 0.40% 0.40% O. 65% 1 111744330 4.4.2.15: Delete “11722762“ and substitute “11722762/11744342“.
30、Delet e 1 17 2 2 7 6 O and subst it Ute I 1 17 2 2 7 6 O / 11 7 4 4 3 34 I . PAGE 27 4.5.3: Delete V117306401v and substitute “11730640/11744341“. 4.5.4: Delete “11722761“ and substitute “11722761/11744337“. PAGE 28 4.5.7, Line 8: Delete “11722762“ and substitute I 11 7 2 2 7 62 / 1 17 4 4 3 4 2 Ir
31、. 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. c MIL-A-63991 (1) = 9999906 2033503 128 MIL-A-63991 (AR) AMENDMENT 1 PAGE 30 6.7: Delete “Alinbal, Inc. 28 Woodmont Rd. Milford, CT 06460“ and substitute “Alinbal, Inc. 28 Woodmont Road Milford,
32、CT 06460 FSCM 31633 EECO, Inc. 1601 Chestnut Avenue Santa Ana, CA 92702 FSCM 97525 Eastman Kodak Company 121 Lincoln Avenue Rochester, NY 14611 FSCM 32153“. PAGE 31 6.7.1, Line 3: Delete “11722760“ and substitute I 11 72 2 7 60 / 11 7 4 4 3 34 I . Custodian: Army-AR Preparing activity: Army-AR (Project 1390-A686) 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
