The Gearshaft,spur, cataloged under National Stock Number 3040-00-465-0685, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-00-465-0685 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 416 |
| Shaft Largest Diameter | 0.475 INCHES NOMINAL IN |
| Shaft End Size | 0.475 INCHES IN |
| Teeth Quantity | 21 |
| Diametral Pitch | 64 |
| Gear Outside Diameter | 0.356 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN |
| Longer Shaft Segment Length | 0.616 INCHES NOMINAL IN |
| Gear Material | STEEL COMP 416 |
| Shaft End Type | PLAIN AND CIRCULAR GROOVED |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.312 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 |
|---|---|
| 249070 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3040-00-465-0685 is a Gearshaft,spur, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 3990-01-017-8361, 5340-01-483-5914. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-00-465-0685: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 416; Shaft Largest Diameter: 0.475 INCHES NOMINAL IN; Shaft End Size: 0.475 INCHES IN. 13 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.