The Worm Shaft, cataloged under National Stock Number 3040-00-288-5804, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-288-5804 |
| Primary Part Number | 127D795-1 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Keyway Depth | 0.156 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Shaft Location | BOTH ENDS OF WORM |
| Teeth Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 10.000 INCHES NOMINAL IN |
| Worm Thread Lead | 1.9516 INCHES NOMINAL IN |
| Thread Length | 0.875 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Thread Length | 1.375 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Material Document and Classification | B50R214,CLASS A,GENERAL ELECTRIC CO MFR REF SINGLE MATERIAL RESPONSE |
| Worm Pitch Diameter | 3.000 INCHES NOMINAL IN |
| Worm Outside Diameter | 3.494 INCHES MINIMUM AND 3.496 INCHES MAXIMUM IN |
| Straight Unthreaded Section Diameter | 0.750 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 1.1250 INCHES MINIMUM AND 1.1255 INCHES MAXIMUM FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 1.9670 INCHES MINIMUM AND 1.9675 INCHES MAXIMUM SECOND END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 1.9686 INCHES MINIMUM AND 1.9690 INCHES MAXIMUM SECOND END FIRST PORTION IN |
| Unthreaded Section Keyway Depth | 0.250 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 | 0.313 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Screw Thread Series Designator | NC OR UNIFIED NATIONAL COARSE (UNC) FIRST END THIRD PORTION |
| Screw Thread Series Designator | SPECIAL SECOND END THIRD PORTION |
| Worm Thread Section Length | 6.000 INCHES NOMINAL IN |
| Shaft Thread Direction | RIGHT-HAND FIRST END THIRD PORTION |
| Shaft Thread Direction | RIGHT-HAND SECOND END THIRD PORTION |
| Worm Helix Angle | 11 DEG,41 MIN,56.24 SEC |
| Material | STEEL |
| Worm Thread Quantity | 2 |
| Worm Thread Direction | RIGHT-HAND |
| Unthreaded Section Keyway Width | 0.4940 INCHES MINIMUM AND 0.4960 INCHES MAXIMUM SECOND END SECOND PORTION IN |
| Worm Pressure Angle in Deg | 25.000 |
| 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 |
|---|---|
| 127D795-1 PRIMARY | General Electric Company (USA) |
| 127D795PC1 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| D3180651PC1 | 5/2 Secondary reference U.S. Government activity |
NSN 3040-00-288-5804 is a Worm Shaft, manufactured by General Electric Company, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-288-5804 has 2 manufacturer part numbers on file: 127D795-1 (General Electric Company), 127D795PC1 (General Electric Company).
Key specifications for 127D795-1: Keyway Depth: 0.156 INCHES NOMINAL SECOND END THIRD PORTION IN; Shaft Location: BOTH ENDS OF WORM; Teeth Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM; Worm Body Length: 10.000 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.