The Worm Shaft, cataloged under National Stock Number 3040-01-139-1606, 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14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-139-1606 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Location | ONE END OF WORM |
| Worm Body Length | 3.875 INCHES NOMINAL IN |
| Worm Pitch Diameter | 3.000 INCHES NOMINAL IN |
| Worm Outside Diameter | 4.666 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 2.250 INCHES NOMINAL FIRST END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 3.000 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Unthreaded Section Keyway Depth | 0.312 INCHES NOMINAL FIRST END FIRST PORTION IN |
| End Similarity | NOT IDENTICAL |
| Worm Thread Direction | RIGHT-HAND |
| Unthreaded Section Keyway Width | 0.7500 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Worm Pressure Angle in Deg | 14.500 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 14.438 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Straight Unthreaded Length | 3.625 INCHES NOMINAL FIRST END SECOND 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 |
|---|---|
| B-6472 | D/9 Drawing number reference only New England Trawler Equipment Co |
| R6293-16 | 3/2 Design control — primary reference U.S. Government activity |
| R6293-16 | 5/9 Secondary reference New England Trawler Equipment Co |
NSN 3040-01-139-1606 is a Worm Shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-01-139-1606: Shaft Location: ONE END OF WORM; Worm Body Length: 3.875 INCHES NOMINAL IN; Overall Length: 21.938 INCHES NOMINAL IN; Worm Pitch Diameter: 3.000 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.