The Worm Shaft, cataloged under National Stock Number 3040-01-243-1029, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 20 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-243-1029 |
| Primary Part Number | 2873547 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Section Shape | HEXAGON FIRST END SECOND PORTION |
| Shaft Section Size | 0.375 IN. ACROSS FLATS IN |
| Worm Body Length | 0.218 INCHES NOMINAL IN |
| Worm Thread Lead | 0.083 INCHES NOMINAL IN |
| Thread Length | 0.500 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Worm Pitch Diameter | 0.447 INCHES NOMINAL IN |
| Worm Outside Diameter | 0.499 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.250 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.656 INCHES NOMINAL FIRST END FIRST PORTION IN |
| End Similarity | NOT IDENTICAL |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SECOND END SECOND PORTION |
| Worm Thread Section Length | 0.875 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | RIGHT-HAND |
| Worm Pressure Angle in Deg | 14.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.094 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 0.125 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 |
NSN 3040-01-243-1029 is a Worm Shaft, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-243-1029 has 2 manufacturer part numbers on file: 2873547 (Bae Systems Land & Armaments L.p.), 2873547 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2873547: Shaft Location: BOTH ENDS OF WORM; Section Shape: HEXAGON FIRST END SECOND PORTION; Shaft Section Size: 0.375 IN. ACROSS FLATS IN; Worm Body Length: 0.218 INCHES NOMINAL IN. 20 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.