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| Item Name | Worm Shaft |
| Federal Supply Group (FSG) | Mechanical Power Transmission Equipment |
| Federal Supply Class (FSC) | 3040 Miscellaneous Power Transmission Equipment |
| National Item Identification Number (NIIN) | 00-385-7808 (003857808) |
| NCB Code | USA (00) |
| Manufacturer | Army United States Department Of The |
| MRC | Criteria | Characteristic |
|---|---|---|
| AAHN | END SIMILARITY | NOT IDENTICAL |
| AASA | THREAD LENGTH | 0.495 INCHES MINIMUM FIRST END,THIRD PORTION |
| AASA | THREAD LENGTH | 0.505 INCHES MAXIMUM FIRST END,THIRD PORTION |
| AASA | THREAD LENGTH | 0.948 INCHES NOMINAL SECOND END,FOURTH PORTION |
| AAUJ | SPLINE MAJOR DIAMETER | 1.116 INCHES MINIMUM SECOND END,THIRD PORTION |
| AAUJ | SPLINE MAJOR DIAMETER | 1.117 INCHES MAXIMUM SECOND END,THIRD PORTION |
| ABHP | OVERALL LENGTH | 8.875 INCHES NOMINAL |
| ABRR | KEYWAY WIDTH | 0.188 INCHES NOMINAL FIRST END,THIRD PORTION |
| ABSC | SPLINE MINOR DIAMETER | 1.021 INCHES MINIMUM SECOND END,THIRD PORTION |
| ABSC | SPLINE MINOR DIAMETER | 1.022 INCHES MAXIMUM SECOND END,THIRD PORTION |
| AJYP | SCREW THREAD SERIES DESIGNATOR | UNF SECOND END,FOURTH PORTION |
| AJYP | SCREW THREAD SERIES DESIGNATOR | UNS FIRST END,THIRD PORTION |
| AKAF | SHAFT THREAD DIRECTION | RIGHT-HAND FIRST END,THIRD PORTION |
| AKAF | SHAFT THREAD DIRECTION | RIGHT-HAND SECOND END,FOURTH PORTION |
| BYFR | TEETH HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| CFFB | WORM THREAD QUANTITY | 1 |
| CFFC | WORM THREAD LEAD | 0.625 INCHES NOMINAL |
| CFFD | WORM THREAD DIRECTION | LEFT-HAND |
| CFFF | WORM PRESSURE ANGLE IN DEG | 14.500 |
| CFFG | WORM HELIX ANGLE | 4 DEG 33 MIN. |
| CFFK | WORM OUTSIDE DIAMETER | 2.8975 INCHES NOMINAL |
| CFFL | WORM PITCH DIAMETER | 2.500 INCHES NOMINAL |
| CFFM | SHAFT HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM |
| CFFN | WORM THREAD SECTION LENGTH | 3.188 INCHES NOMINAL |
| CFFP | WORM BODY LENGTH | 3.563 INCHES NOMINAL |
| CFFQ | WORM BODY TAPERED BEARING SURFACE END | NOT PROVIDED |
| CFFW | SHAFT LOCATION | BOTH ENDS OF WORM |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.557 INCHES NOMINAL SECOND END,SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.625 INCHES NOMINAL FIRST END,SECOND PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.719 INCHES NOMINAL FIRST END,FIRST PORTION |
| CFFX | STRAIGHT UNTHREADED LENGTH | 0.719 INCHES NOMINAL SECOND END,FIRST PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1810 INCHES MINIMUM FIRST END,SECOND PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1810 INCHES MINIMUM SECOND END,SECOND PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1814 INCHES MAXIMUM FIRST END,SECOND PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.1814 INCHES MAXIMUM SECOND END,SECOND PORTION |
| CFFY | STRAIGHT UNTHREADED SECTION DIAMETER | 1.438 INCHES NOMINAL FIRST END,FIRST PORTION |
| CFFZ | UNTHREADED SECTION KEYWAY WIDTH | 0.1880 INCHES NOMINAL FIRST END,SECOND PORTION |
| CFGB | UNTHREADED SECTION KEYWAY DEPTH | 0.094 INCHES NOMINAL FIRST END,SECOND PORTION |
| CFQN | STRAIGHT SPLINE LENGTH | 1.245 INCHES NOMINAL SECOND END,THIRD PORTION |
| CFQP | THREADED SECTION PIN HOLE DIAMETER | 0.140 INCHES NOMINAL SECOND END,FOURTH PORTION |
| CFQT | STRAIGHT SPLINE QUANTITY | 10 EITHER END |
| FEAT | SPECIAL FEATURES | NO. 63 FINISH ON OD OF SECOND STEP,ON BOTH ENDS,ON SPLINE AND WORM TEETH SURFACES |
| MATT | MATERIAL | STEEL |
| SFTT | SURFACE TREATMENT | PHOSPHATE |
| ZZZV | FSC APPLICATION DATA | LAUNCHER,762-MM ROCKET,TRUCK MOUNTED,XM289 |
| Relevant Components for NSN - 3040-00-385-7808, 3040003857808 | ||||
| 3040-01-497-1399 (3040014971399) | 3030-01-386-1676 (3030013861676) | 3040-00-309-2908 (3040003092908) | 3040-01-600-1003 (3040016001003) | |
| 3020-01-159-7845 (3020011597845) | 3020-00-001-2085 (3020000012085) | 3040-01-102-4532 (3040011024532) | 3010-00-804-9979 (3010008049979) | |
| 3010-01-109-1626 (3010011091626) | 3030-01-602-9290 (3030016029290) | 3020-00-287-7213 (3020002877213) | 3040-01-477-6535 (3040014776535) | |
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