The Worm Shaft, cataloged under National Stock Number 3040-00-288-5805, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is General Electric Company. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-288-5805 |
| Primary Part Number | 127D794-1 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Teeth Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 6.125 INCHES NOMINAL IN |
| Worm Thread Lead | 0.7352 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Thread Length | 0.563 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Material Document and Classification | B50R214,CLASS A,GENERAL ELECTRIC CO MFR REF SINGLE MATERIAL RESPONSE |
| Worm Pitch Diameter | 1.600 INCHES NOMINAL IN |
| Worm Outside Diameter | 1.808 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM SECOND END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 1.1812 INCHES MINIMUM AND 1.1815 INCHES MAXIMUM FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 1.1812 INCHES MINIMUM AND 1.1815 INCHES MAXIMUM SECOND END FIRST PORTION IN |
| Unthreaded Section Keyway Depth | 0.094 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Unthreaded Section Keyway Depth | 0.094 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Unthreaded Section Keyway Depth | 0.125 INCHES NOMINAL SECOND END SECOND PORTION IN |
| End Similarity | NOT IDENTICAL |
| Shaft Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Keyway Width | 0.188 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Keyway Width | 0.188 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Screw Thread Series Designator | SPECIAL FIRST END FIRST PORTION |
| Screw Thread Series Designator | SPECIAL SECOND END FIRST PORTION |
| Worm Thread Section Length | 3.500 INCHES NOMINAL IN |
| Shaft Thread Direction | RIGHT-HAND FIRST END FIRST PORTION |
| Shaft Thread Direction | RIGHT-HAND SECOND END FIRST PORTION |
| Worm Helix Angle | 8 DEG,19 MIN,16.45 SEC |
| Material | STEEL |
| Worm Thread Quantity | 2 |
| Worm Thread Direction | RIGHT-HAND |
| Unthreaded Section Keyway Width | 0.1880 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 127D794-1 PRIMARY | General Electric Company (USA) |
| 127D794PC1 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| D3180650PC1 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-00-288-5805 is a Worm Shaft, manufactured by General Electric Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-288-5805 has 2 manufacturer part numbers on file: 127D794-1 (General Electric Company), 127D794PC1 (General Electric Company).
Key specifications for 127D794-1: Shaft Location: BOTH ENDS OF WORM; Teeth Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM; Worm Body Length: 6.125 INCHES NOMINAL IN; Worm Thread Lead: 0.7352 INCHES NOMINAL IN. 29 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.