The Gearshaft,helical, cataloged under National Stock Number 3040-01-311-8152, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-311-8152 |
| Item Name | Gearshaft,helical |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL |
| Helix Angle | 20.9034 DEGREES |
| Shaft Largest Diameter | 0.590 INCHES NOMINAL IN |
| Teeth Quantity | 18 |
| Tooth Direction | LEFT |
| Teeth Type | SINGLE HELIX |
| Gear Material | STEEL |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.560 INCHES NOMINAL 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 |
|---|---|
| 301806 | D/9 Drawing number reference only Naval Command Control and Ocean Surveillance Center in Service Engineering Div West Coast |
| 301806-2 | 3/9 Design control — primary reference Naval Command Control and Ocean Surveillance Center in Service Engineering Div West Coast |
NSN 3040-01-311-8152 is a Gearshaft,helical, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5999-01-407-7342, 5905-01-412-1377. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-311-8152: Shaft Type: SHOULDERED; Shaft Material: STEEL; Helix Angle: 20.9034 DEGREES; Shaft Largest Diameter: 0.590 INCHES NOMINAL IN. 10 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.