The Gearshaft,bevel, cataloged under National Stock Number 3040-01-280-4970, 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 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-280-4970 |
| Primary Part Number | 6289621 |
| Item Name | Gearshaft,bevel |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Shaft Type | SHOULDERED |
| Shaft Material | STEEL |
| Shaft Largest Diameter | 1.750 INCHES NOMINAL IN |
| Shaft End Size | 1.180 INCHES IN |
| Teeth Quantity | 22 |
| Pitch Angle | 34.4998 DEGREES |
| Diametral Pitch | 18 |
| Teeth Type | STRAIGHT |
| Gear Outside Diameter | 1.250 INCHES NOMINAL IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Gear Material | STEEL |
| Shaft Length | 4.270 INCHES NOMINAL IN |
| Shaft End Type | SPLINED STRAIGHT |
| Gear Location on Shaft | ON END OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| 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 |
|---|---|
| 6289621 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6289621 | 5/1 Secondary reference Cadillac Gage Textron Inc. |
| 6289621 | 5/9 Secondary reference Calabrese & Sons, Inc. |
NSN 3040-01-280-4970 is a Gearshaft,bevel, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-280-4970 has 1 manufacturer part number on file: 6289621 (Naval Sea Systems Command).
Key specifications for 6289621: Shaft Type: SHOULDERED; Shaft Material: STEEL; Shaft Largest Diameter: 1.750 INCHES NOMINAL IN; Shaft End Size: 1.180 INCHES IN. 15 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.