The Gearshaft,spur, cataloged under National Stock Number 3040-01-210-5869, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-210-5869 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Material | NICKEL ALLOY |
| Teeth Quantity | 14 |
| Gear Outside Diameter | 2.599 INCHES NOMINAL IN |
| Gear Material | NICKEL ALLOY |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 1.750 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 |
|---|---|
| SSN671-505-2047605 PIECE 3 | 5/2 Secondary reference U.S. Government activity |
| 71656-31X4 | D/9 Drawing number reference only U.S. Government activity |
| 71656-31X4 PIECE 3 | 3/2 Design control — primary reference U.S. Government activity |
| SSN671-505-2047605 | D/9 Drawing number reference only U.S. Government activity |
NSN 3040-01-210-5869 is a Gearshaft,spur, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 3020-01-210-5881. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-210-5869: Shaft Material: NICKEL ALLOY; Teeth Quantity: 14; Gear Outside Diameter: 2.599 INCHES NOMINAL IN; Overall Length: 5.038 INCHES NOMINAL IN. 6 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.