The Gearshaft,spur, cataloged under National Stock Number 3040-01-327-8120, 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 13 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 | 3040-01-327-8120 |
| Primary Part Number | 5821031 |
| 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 |
| Shaft Largest Diameter | 0.2798 INCHES MINIMUM AND 0.2802 INCHES MAXIMUM IN |
| Shaft End Size | 0.1874 INCHES IN |
| Teeth Quantity | 16 |
| Diametral Pitch | 48 |
| Gear Outside Diameter | 0.3823 INCHES MINIMUM AND 0.3887 INCHES MAXIMUM IN |
| Longer Shaft Segment Length | 0.367 INCHES NOMINAL IN |
| Gear Material | STEEL |
| Shaft End Type | PLAIN |
| Gear Location on Shaft | OFF CENTER BETWEEN ENDS OF SHAFT |
| Pressure Angle | 20.0000 DEGREES |
| Face Width | 0.430 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 |
|---|---|
| 5821031 PRIMARY | Naval Sea Systems Command (USA) |
NSN 3040-01-327-8120 is a Gearshaft,spur, manufactured by Naval Sea Systems Command, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-327-8120 has 1 manufacturer part number on file: 5821031 (Naval Sea Systems Command).
Key specifications for 5821031: Shaft Type: SHOULDERED; Shaft Material: STEEL; Shaft Largest Diameter: 0.2798 INCHES MINIMUM AND 0.2802 INCHES MAXIMUM IN; Shaft End Size: 0.1874 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.