The Worm Shaft, cataloged under National Stock Number 3040-00-116-5182, 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26 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3040-00-116-5182 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Involute Spline Pitch Diameter | 1.4000 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Teeth Hardness Rating | 60.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 7.601 INCHES NOMINAL IN |
| Worm Thread Lead | 0.8378 INCHES NOMINAL IN |
| Material Document and Classification | FED STD 66,AISI/SAE 8620 FED STD SINGLE MATERIAL RESPONSE |
| Worm Pitch Diameter | 2.000 INCHES NOMINAL IN |
| Worm Outside Diameter | 2.533 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 1.564 INCHES MINIMUM AND 1.565 INCHES MAXIMUM SECOND END SECOND PORTION IN |
| Straight Unthreaded Section Diameter | 1.626 INCHES MINIMUM AND 1.627 INCHES MAXIMUM FIRST END FIRST PORTION IN |
| Straight Unthreaded Section Diameter | 1.626 INCHES MINIMUM AND 1.627 INCHES MAXIMUM SECOND END FIRST PORTION IN |
| End Similarity | IDENTICAL |
| Shaft Hardness Rating | 60.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Involute Spline Length | 0.844 INCHES NOMINAL SECOND END THIRD PORTION IN |
| Worm Thread Section Length | 5.500 INCHES NOMINAL IN |
| Involute Spline Pressure Angle in Deg | 30.0 SECOND END THIRD PORTION |
| Worm Helix Angle | 7 DEG 36 MIN |
| Material | STEEL COMP 8620 |
| Worm Thread Quantity | 1 |
| Worm Thread Direction | RIGHT-HAND |
| Involute Spline Quantity | 28 SECOND END THIRD PORTION |
| Worm Pressure Angle in Deg | 25.000 |
| Worm Body Tapered Bearing Surface End | NOT PROVIDED |
| Straight Unthreaded Length | 0.531 INCHES NOMINAL SECOND END SECOND PORTION IN |
| Straight Unthreaded Length | 0.933 INCHES MINIMUM AND 0.938 INCHES MAXIMUM SECOND END FIRST PORTION IN |
| Straight Unthreaded Length | 1.211 INCHES MINIMUM AND 1.273 INCHES MAXIMUM 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 |
|---|---|
| 18030-30 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3040-00-116-5182 is a Worm Shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-116-5182: Shaft Location: BOTH ENDS OF WORM; Involute Spline Pitch Diameter: 1.4000 INCHES NOMINAL SECOND END THIRD PORTION IN; Teeth Hardness Rating: 60.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM; Worm Body Length: 7.601 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.