The Worm Shaft, cataloged under National Stock Number 3040-00-025-9228, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 26 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-025-9228 |
| Primary Part Number | 67A247C25 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Shaft Location | ONE END OF WORM |
| Worm Body Length | 5.070 INCHES NOMINAL IN |
| Worm Thread Lead | 0.166 INCHES NOMINAL IN |
| Thread Length | 1.098 INCHES NOMINAL FIRST END FIFTH PORTION IN |
| Worm Pitch Diameter | 0.791 INCHES NOMINAL IN |
| Worm Outside Diameter | 0.875 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.555 INCHES NOMINAL FIRST END FOURTH PORTION IN |
| Straight Unthreaded Section Diameter | 0.625 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Straight Unthreaded Section Diameter | 0.676 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.875 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Unthreaded Section Keyway Depth | 0.111 INCHES NOMINAL FIRST END THIRD PORTION IN |
| Screw Thread Series Designator | UNF FIRST END FIFTH PORTION |
| Worm Thread Section Length | 5.010 INCHES NOMINAL IN |
| Shaft Thread Direction | RIGHT-HAND FIRST END FIFTH PORTION |
| Worm Helix Angle | 14 DEG 30 MIN |
| Material | STEEL |
| Worm Thread Quantity | 30 |
| Worm Thread Direction | LEFT-HAND |
| Unthreaded Section Keyway Width | 0.1865 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM FIRST END THIRD PORTION IN |
| Threaded Section Pin Hole Diameter | 0.140 INCHES NOMINAL FIRST END FIFTH PORTION IN |
| Worm Pressure Angle in Deg | 14.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.062 INCHES NOMINAL FIRST END FOURTH PORTION IN |
| Straight Unthreaded Length | 0.280 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Length | 0.560 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 2.590 INCHES NOMINAL FIRST END THIRD 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 |
|---|---|
| 67A247C25 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 3040-00-025-9228 is a Worm Shaft, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-025-9228 has 1 manufacturer part number on file: 67A247C25 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 67A247C25: Shaft Location: ONE END OF WORM; Worm Body Length: 5.070 INCHES NOMINAL IN; Worm Thread Lead: 0.166 INCHES NOMINAL IN; Thread Length: 1.098 INCHES NOMINAL FIRST END FIFTH PORTION IN. 26 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.