The Gearshaft,spur, cataloged under National Stock Number 3040-00-072-0549, 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13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-072-0549 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 4140H |
| Shaft Largest Diameter | 2.402 INCHES NOMINAL IN |
| Shaft End Size | 1.884 INCHES IN |
| Teeth Quantity | 10 |
| Diametral Pitch | 3 |
| Gear Outside Diameter | 4.188 INCHES NOMINAL IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| Gear Material | STEEL COMP 4140H |
| Shaft End Type | PLAIN |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 14.5000 DEGREES |
| Face Width | 1.937 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 |
|---|---|
| VP2025 | 5/9 Secondary reference American Standard Inc Westinghouse Air Brake Co Div |
| VP2025 | 3/9 Design control — primary reference Komatsu America Corp. |
NSN 3040-00-072-0549 is a Gearshaft,spur, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
Key specifications for 3040-00-072-0549: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 4140H; Shaft Largest Diameter: 2.402 INCHES NOMINAL IN; Shaft End Size: 1.884 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.