| 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) | 00-684-2149 (006842149) |
| NCB Code | USA (00) |
| Manufacturer | Westinghouse Electric Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| CFFC | Worm Thread Lead | 2.500 INCHES NOMINAL |
| CFFL | Worm Pitch Diameter | 4.085 INCHES NOMINAL |
| CFFW | Shaft Location | BOTH ENDS OF WORM |
| CFFX | Straight Unthreaded Length | 2.5625 INCHES NOMINAL EITHER END, SECOND PORTION |
| CFFY | Straight Unthreaded Section Diameter | 2.5597 INCHES MAXIMUM EITHER END, SECOND PORTION |
| CFFY | Straight Unthreaded Section Diameter | 2.166 INCHES MAXIMUM EITHER END, NINTH PORTION |
| AASA | Thread Length | 2.313 INCHES NOMINAL EITHER END, SEVENTH PORTION |
| AKAF | Shaft Thread Direction | RIGHT-HAND EITHER END, TENTH PORTION |
| ABHP | Overall Length | 29.875 INCHES NOMINAL |
| AASA | Thread Length | 0.750 INCHES NOMINAL EITHER END, THIRD PORTION |
| AJYP | Screw Thread Series Designator | UNF-2A EITHER END, TENTH PORTION |
| CFFB | Worm Thread Quantity | 2 |
| CFFK | Worm Outside Diameter | 4.881 INCHES NOMINAL |
| CFFQ | Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| CFFX | Straight Unthreaded Length | 2.3125 INCHES NOMINAL EITHER END, NINTH PORTION |
| CFFY | Straight Unthreaded Section Diameter | 2.165 INCHES MINIMUM EITHER END, NINTH PORTION |
| CFFY | Straight Unthreaded Section Diameter | 2.5592 INCHES MINIMUM EITHER END, SECOND PORTION |
| CFGB | Unthreaded Section Keyway Depth | 0.2656 INCHES NOMINAL EITHER END, NINTH PORTION |
| MATT | Material | STEEL,AISI8620 |
| AAHN | End Similarity | NOT IDENTICAL |
| CFFD | Worm Thread Direction | RIGHT-HAND |
| CFFM | Shaft Hardness Rating | C SCALE 24 MIN |
| CFFX | Straight Unthreaded Length | 0.250 INCHES NOMINAL EITHER END, FOURTH PORTION |
| CFFX | Straight Unthreaded Length | 3.875 INCHES NOMINAL EITHER END, FIRST PORTION |
| CFFY | Straight Unthreaded Section Diameter | 3.250 INCHES NOMINAL EITHER END, FIFTH PORTION |
| CFFY | Straight Unthreaded Section Diameter | 2.250 INCHES NOMINAL EITHER END, FOURTH PORTION |
| AJYP | Screw Thread Series Designator | UNEF-2A EITHER END, THIRD PORTION |
| BYFR | Teeth Hardness Rating | 56.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM |
| AJYP | Screw Thread Series Designator | UNEF-2A EITHER END, SEVENTH PORTION |
| AKAF | Shaft Thread Direction | RIGHT-HAND EITHER END, THIRD PORTION |
| MRC | Decoded Requirement | Clear Text Reply |
| CFFG | Worm Helix Angle | 11 DEG 2 MIN |
| CFFP | Worm Body Length | 8.000 INCHES NOMINAL |
| CFFX | Straight Unthreaded Length | 1.500 INCHES NOMINAL EITHER END, SIXTH PORTION |
| CFFY | Straight Unthreaded Section Diameter | 0.2625 INCHES NOMINAL EITHER END, EIGHTH PORTION |
| CFFY | Straight Unthreaded Section Diameter | 2.7575 INCHES MAXIMUM EITHER END, SIXTH PORTION |
| CFFZ | Unthreaded Section Keyway Width | 0.4950 INCHES NOMINAL EITHER END, NINTH PORTION |
| AASA | Thread Length | 1.313 INCHES NOMINAL EITHER END, TENTH PORTION |
| AKAF | Shaft Thread Direction | RIGHT-HAND EITHER END, SEVENTH PORTION |
| AGVN | Shaft Thread Size | UNABLE TO DECODE |
| CFFF | Worm Pressure Angle In Deg | 14.5 |
| CFFN | Worm Thread Section Length | 8.000 INCHES NOMINAL |
| CFFX | Straight Unthreaded Length | 0.844 INCHES NOMINAL EITHER END, EIGHTH PORTION |
| CFFX | Straight Unthreaded Length | 7.8125 INCHES NOMINAL EITHER END, FIFTH PORTION |
| CFFY | Straight Unthreaded Section Diameter | 3.250 INCHES NOMINAL EITHER END, FIRST PORTION |
| CFFY | Straight Unthreaded Section Diameter | 2.7560 INCHES MINIMUM EITHER END, SIXTH PORTION |
| ZZZV | Fsc Application Data | STEAM TURBINE |
| Components Related to NSN - 3040-00-684-2149, 3040006842149 | ||||
| 3020-01-701-2899 (3020017012899) | 3020-00-442-3898 (3020004423898) | 3010-01-054-7158 (3010010547158) | 3040-01-610-1098 (3040016101098) | |
| 3020-01-213-8653 (3020012138653) | 3020-00-246-2756 (3020002462756) | 3010-00-421-4179 (3010004214179) | 3010-01-342-7591 (3010013427591) | |
| 3020-00-610-5464 (3020006105464) | 3040-01-368-7605 (3040013687605) | 3020-00-160-9493 (3020001609493) | 3040-01-062-8273 (3040010628273) | |
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