The Gear,spur, cataloged under National Stock Number 3020-01-450-8642, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-450-8642 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 3.630 INCHES BOTH ENDS IN |
| Teeth Quantity | 52 |
| Body Style | WEBBED, SOLID |
| Counterbore Nominal Diameter | 5.600 INCHES COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Style Designator | HUBLESS, RECESSED BODY |
| Pitch Diameter | 0.3200 INCHES NOMINAL IN |
| Nominal Outside Diameter | 5.960 INCHES IN |
| Pressure Angle | 4.5000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.270 INCHES COUNTERBORE FIRST END IN |
| Body Recess Nominal Depth | 0.270 INCHES FIRST END IN |
| Body Recess Nominal Depth | 0.000 INCHES SECOND END IN |
| Face Nominal Width | 0.360 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Reference | Meaning |
|---|---|
| 3001359-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-450-8642 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-450-8642: Bore Nominal Diameter: 3.630 INCHES BOTH ENDS IN; Teeth Quantity: 52; Body Style: WEBBED, SOLID; Counterbore Nominal Diameter: 5.600 INCHES COUNTERBORE FIRST END 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.