The Gearshaft,spur, cataloged under National Stock Number 3040-01-642-5358, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-642-5358 |
| Primary Part Number | 6743947 |
| Item Name | Gearshaft,spur |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL COMP 8620 |
| Shaft Largest Diameter | 2.82 INCHES NOMINAL IN |
| Shaft End Size | 10.0 INCHES IN |
| Teeth Quantity | 17 |
| Diametral Pitch | 6 |
| Gear Outside Diameter | 3.166 INCHES NOMINAL IN |
| Hardness Rating | 35.0 ROCKWELL C MINIMUM SHAFT |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM GEAR |
| Gear Material | STEEL COMP 8620 |
| Shaft End Type | KEYWAY WOODRUFF |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 20.0 DEGREES |
| Face Width | 1.830 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 |
| Part Number | Manufacturer |
|---|---|
| 6743947 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3040-01-642-5358 is a Gearshaft,spur, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-642-5358 has 1 manufacturer part number on file: 6743947 (Naval Sea Systems Command).
Key specifications for 6743947: Shaft Type: SHOULDERED; Shaft Material: STEEL COMP 8620; Shaft Largest Diameter: 2.82 INCHES NOMINAL IN; Shaft End Size: 10.0 INCHES IN. 14 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.