The Gearshaft,spur, cataloged under National Stock Number 3040-01-034-4927, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 3040-01-034-4927 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 4140 |
| Shaft Largest Diameter | 2.500 INCHES NOMINAL IN |
| Shaft End Size | 2.001 INCHES IN |
| Teeth Quantity | 22 |
| Gear Outside Diameter | 1.353 INCHES MINIMUM AND 1.358 INCHES MAXIMUM IN |
| Gear Material | STEEL COMP 4140 |
| Shaft End Type | PLAIN |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 1.313 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 |
|---|---|
| 22529-1 | 3/9 Design control — primary reference Northern Line Machine Div of Commencement Intl Corp |
| 12515PC4 | 5/9 Secondary reference Northern Line Machine Div of Commencement Intl Corp |
| 22529 | D/9 Drawing number reference only Northern Line Machine Div of Commencement Intl Corp |
NSN 3040-01-034-4927 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): 4820-01-408-7020, 3020-01-628-6542. Verify interchangeability with system specifications before substitution.
Key specifications for 3040-01-034-4927: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 4140; Shaft Largest Diameter: 2.500 INCHES NOMINAL IN; Shaft End Size: 2.001 INCHES IN. 11 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.