The Worm Shaft, cataloged under National Stock Number 3040-01-121-8384, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-121-8384 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Location | ONE END OF WORM |
| Worm Thread Lead | 0.196 INCHES NOMINAL IN |
| Worm Pitch Diameter | 0.438 INCHES NOMINAL IN |
| Worm Outside Diameter | 0.469 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.250 INCHES NOMINAL FIRST END IN |
| Unthreaded Section Pin Hole Diameter | 0.1250 INCHES NOMINAL FIRST END IN |
| Worm Thread Section Length | 0.422 INCHES NOMINAL IN |
| Worm Helix Angle | 8 DEG 8 MIN |
| Material | STEEL |
| Worm Thread Quantity | 2 |
| Worm Thread Direction | LEFT-HAND |
| Worm Pressure Angle in Deg | 20.000 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 1.109 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 |
|---|---|
| 43412G1 | 5/9 Secondary reference Bosch Security Systems, Llc |
| 43412G1 | 3/9 Design control — primary reference Telex Communications Inc Sub of Telex Corp |
NSN 3040-01-121-8384 is a Worm Shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-121-8384: Shaft Location: ONE END OF WORM; Worm Thread Lead: 0.196 INCHES NOMINAL IN; Overall Length: 1.531 INCHES NOMINAL IN; Worm Pitch Diameter: 0.438 INCHES NOMINAL IN. 14 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.