The Worm Shaft, cataloged under National Stock Number 3040-00-936-8189, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-936-8189 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Worm Body Length | 15.750 INCHES NOMINAL IN |
| Thread Length | 0.750 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Worm Outside Diameter | 1.125 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 1.344 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 1.375 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 1.375 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Unthreaded Section Keyway Depth | 0.250 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Unthreaded Section Keyway Depth | 3.562 INCHES NOMINAL SECOND END FIRST PORTION IN |
| End Similarity | NOT IDENTICAL |
| Screw Thread Series Designator | UNF FIRST END FIRST PORTION |
| Worm Thread Section Length | 6.250 INCHES NOMINAL IN |
| Material | STEEL |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | LEFT-HAND |
| Unthreaded Section Keyway Width | 0.2500 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Unthreaded Section Keyway Width | 0.3120 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 2.312 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Straight Unthreaded Length | 2.562 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Length | 3.750 INCHES NOMINAL SECOND 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 |
|---|---|
| HW8633 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3040-00-936-8189 is a Worm Shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-936-8189: Shaft Location: BOTH ENDS OF WORM; Worm Body Length: 15.750 INCHES NOMINAL IN; Thread Length: 0.750 INCHES NOMINAL FIRST END FIRST PORTION IN; Overall Length: 15.750 INCHES NOMINAL IN. 21 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.