The Worm Shaft, cataloged under National Stock Number 3040-01-451-8315, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-01-451-8315 |
| Primary Part Number | 752-5944479-7 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Worm Body Length | 1.625 INCHES NOMINAL IN |
| Worm Thread Lead | 0.3142 INCHES NOMINAL IN |
| Worm Pitch Diameter | 1.000 INCHES NOMINAL IN |
| Worm Outside Diameter | 1.200 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.422 INCHES NOMINAL SECOND END FIFTH PORTION IN |
| Straight Unthreaded Section Diameter | 0.625 INCHES NOMINAL SECOND END FOURTH PORTION IN |
| Straight Unthreaded Section Diameter | 0.6887 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Straight Unthreaded Section Diameter | 0.6887 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Straight Unthreaded Section Diameter | 0.750 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.750 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Taper Largest Diameter | 0.910 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Taper Largest Diameter | 0.910 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Unthreaded Section Keyway Depth | 0.078 INCHES NOMINAL SECOND END FIFTH PORTION IN |
| End Similarity | NOT IDENTICAL |
| Taper Length | 0.073 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Taper Length | 0.073 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Worm Thread Section Length | 1.625 INCHES NOMINAL IN |
| Worm Helix Angle | 5 DEG 11 MIN 20 SEC |
| Material | STEEL |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | RIGHT-HAND |
| Unthreaded Section Keyway Width | 0.1260 INCHES NOMINAL SECOND END FIFTH PORTION IN |
| Worm Pressure Angle in Deg | 20.000 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.060 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 0.060 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 0.510 INCHES NOMINAL SECOND END FOURTH 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 |
|---|---|
| 752-5944479-7 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5944479 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3040-01-451-8315 is a Worm Shaft, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-451-8315 has 1 manufacturer part number on file: 752-5944479-7 (Naval Sea Systems Command).
Key specifications for 752-5944479-7: Shaft Location: BOTH ENDS OF WORM; Worm Body Length: 1.625 INCHES NOMINAL IN; Worm Thread Lead: 0.3142 INCHES NOMINAL IN; Overall Length: 5.750 INCHES NOMINAL IN. 28 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.