The Worm Shaft, cataloged under National Stock Number 3040-00-213-7828, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-213-7828 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Worm Thread Lead | 0.049 INCHES NOMINAL IN |
| Thread Length | 1.187 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Worm Pitch Diameter | 0.375 INCHES NOMINAL IN |
| Worm Outside Diameter | 0.406 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.188 INCHES NOMINAL SECOND END FIFTH PORTION IN |
| Straight Unthreaded Section Diameter | 0.188 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.197 INCHES NOMINAL SECOND END FOURTH PORTION IN |
| Straight Unthreaded Section Diameter | 0.234 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 0.312 INCHES NOMINAL SECOND END THIRD PORTION IN |
| End Similarity | NOT IDENTICAL |
| Screw Thread Series Designator | UNS SECOND END SECOND PORTION |
| Surface Treatment | PASSIVATE |
| Worm Thread Section Length | 0.625 INCHES NOMINAL IN |
| Shaft Thread Direction | RIGHT-HAND SECOND END SECOND PORTION |
| Worm Helix Angle | 2 DEG 23 MIN 17 SEC |
| Material | STEEL CORROSION RESISTING |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | RIGHT-HAND |
| Worm Pressure Angle in Deg | 20.000 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.188 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Straight Unthreaded Length | 0.203 INCHES NOMINAL SECOND END FOURTH PORTION IN |
| Straight Unthreaded Length | 0.242 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 0.702 INCHES NOMINAL SECOND END FIFTH PORTION IN |
| Straight Unthreaded Length | 2.164 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 |
| Reference | Meaning |
|---|---|
| 435-11-0045 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-213-7828 is a Worm Shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-213-7828: Shaft Location: BOTH ENDS OF WORM; Worm Thread Lead: 0.049 INCHES NOMINAL IN; Thread Length: 1.187 INCHES NOMINAL SECOND END SECOND PORTION IN; Overall Length: 6.031 INCHES NOMINAL 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.