The Gearshaft,spur, cataloged under National Stock Number 3040-00-174-3711, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-174-3711 |
| Primary Part Number | 65850-05144-101 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL |
| Shaft Largest Diameter | 0.736 INCHES NOMINAL IN |
| Shaft End Size | 0.650 INCHES IN |
| Teeth Quantity | 17 |
| Diametral Pitch | 14 |
| Gear Outside Diameter | 1.356 INCHES NOMINAL IN |
| Gear Material | STEEL |
| Shaft End Type | SPLINED STRAIGHT |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 25.0000 DEGREES |
| Face Width | 0.430 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 65850-05144-101 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| 65850-05144-101 | Precision Gear Industries Llc (USA) |
| 65850-05144-101 | Eastern Gear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 65850-05144-101 | 5/2 Secondary reference U.S. Government activity |
| 65850-05144-101 | 5/9 Secondary reference U.S. Government activity |
NSN 3040-00-174-3711 is a Gearshaft,spur, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-174-3711 has 3 manufacturer part numbers on file: 65850-05144-101 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp), 65850-05144-101 (Precision Gear Industries Llc), 65850-05144-101 (Eastern Gear Corporation).
Key specifications for 65850-05144-101: Shaft Type: SHOULDERED; Shaft Material: STEEL; Shaft Largest Diameter: 0.736 INCHES NOMINAL IN; Shaft End Size: 0.650 INCHES IN. 12 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.
NSN 3040-00-174-3711 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.