The Worm Shaft, cataloged under National Stock Number 3040-01-215-2837, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-215-2837 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Location | ONE END OF WORM |
| Worm Body Length | 80.625 INCHES NOMINAL IN |
| Worm Thread Lead | 0.5236 INCHES NOMINAL IN |
| Thread Length | 1.187 INCHES NOMINAL FIRST END IN |
| Criticality Code Justification | ZZZY |
| Worm Pitch Diameter | 2.000 INCHES NOMINAL IN |
| Worm Outside Diameter | 2.3332 INCHES NOMINAL IN |
| Tapered Bearing Surface Length | 1.375 INCHES NOMINAL IN |
| Screw Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) FIRST END |
| Worm Thread Section Length | 3.000 INCHES NOMINAL IN |
| Shaft Thread Direction | RIGHT-HAND FIRST END |
| Worm Helix Angle | 4 DEG 46 MIN |
| Material | STEEL |
| Worm Thread Direction | RIGHT-HAND |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Worm Pressure Angle in Deg | 20.000 |
| Worm Body Tapered Bearing Surface End | PROVIDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL F — Mutilate — Cut |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Reference | Meaning |
|---|---|
| 114-4555764REVSORLATERITEM23 | 5/1 Secondary reference Naval Sea Systems Command |
| 114 4555764 | 5/1 Secondary reference Naval Sea Systems Command |
| 114-5769044SH2ITEM23 | 5/1 Secondary reference Naval Sea Systems Command |
| 4555764 IT 23 | 3/1 Design control — primary reference Naval Sea Systems Command |
NSN 3040-01-215-2837 is a Worm Shaft, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3120-01-215-3858. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-215-2837: Shaft Location: ONE END OF WORM; Worm Body Length: 80.625 INCHES NOMINAL IN; Worm Thread Lead: 0.5236 INCHES NOMINAL IN; Thread Length: 1.187 INCHES NOMINAL FIRST END IN. 17 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.
NSN 3040-01-215-2837 has DEMIL Code F. Demilitarization may be required before disposal or transfer to non-military entities.
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.