The Worm Shaft, cataloged under National Stock Number 3040-00-435-8876, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-435-8876 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Keyway Depth | 0.751 INCHES NOMINAL SECOND END IN |
| Shaft Location | BOTH ENDS OF WORM |
| Worm Body Length | 1.175 INCHES NOMINAL IN |
| Worm Thread Lead | 0.197 INCHES NOMINAL IN |
| Thread Length | 1.995 INCHES NOMINAL SECOND END IN |
| Worm Pitch Diameter | 0.556 INCHES NOMINAL IN |
| Worm Outside Diameter | 0.680 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.375 INCHES NOMINAL FIRST END IN |
| End Similarity | NOT IDENTICAL |
| Keyway Width | 0.126 INCHES NOMINAL SECOND END IN |
| Screw Thread Series Designator | UNF SECOND END |
| Material | STEEL |
| Worm Thread Quantity | 6 |
| Worm Thread Direction | RIGHT-HAND |
| Threaded Section Pin Hole Diameter | 0.067 INCHES NOMINAL SECOND END IN |
| Worm Pressure Angle in Deg | 20.000 |
| Straight Unthreaded Length | 0.300 INCHES NOMINAL FIRST END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 12M2235-9 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-435-8876 is a Worm Shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-435-8876: Keyway Depth: 0.751 INCHES NOMINAL SECOND END IN; Shaft Location: BOTH ENDS OF WORM; Worm Body Length: 1.175 INCHES NOMINAL IN; Worm Thread Lead: 0.197 INCHES NOMINAL IN. 17 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.