The Gear,spur, cataloged under National Stock Number 3020-01-413-1397, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-413-1397 |
| Primary Part Number | 582-6404311-5 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.579 INCHES BOTH ENDS IN |
| Teeth Quantity | 20 |
| Body Style | PLAIN, SOLID |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Style Designator | HUBLESS |
| Pitch Diameter | 5.0000 INCHES NOMINAL IN |
| Spline Quantity | 10 BOTH ENDS |
| Nominal Outside Diameter | 5.495 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 3.000 INCHES 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 |
|---|---|
| 582-6404311-5 PRIMARY | Naval Sea Systems Command (USA) |
| 211044828 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 582-6404311 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 3020-01-413-1397 is a Gear,spur, manufactured by Naval Sea Systems Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-413-1397 has 2 manufacturer part numbers on file: 582-6404311-5 (Naval Sea Systems Command), 211044828 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 3020-01-413-1402. Verify interchangeability with system specifications before substitution.
Key specifications for 582-6404311-5: Bore Nominal Diameter: 2.579 INCHES BOTH ENDS IN; Teeth Quantity: 20; Body Style: PLAIN, SOLID; Bore Style: STRAIGHT SPLINE BOTH ENDS. 11 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.