The Gear,spur, cataloged under National Stock Number 3020-00-422-9990, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-422-9990 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.000 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 2.623 INCHES FIRST END IN |
| Teeth Quantity | 16 |
| Body Style | PLAIN, SOLID |
| Bore Style | INVOLUTE SPLINE BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.596 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Tooth Form | STANDARD |
| Hub Style Designator | 1 GROOVE FIRST END |
| Spline Quantity | 15 BOTH ENDS |
| Nominal Outside Diameter | 3.486 INCHES IN |
| Nominal Distance From End to First Groove | 0.223 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | STEEL OVERALL |
| First Groove Nominal Diameter | 2.342 INCHES FIRST END IN |
| First Groove Nominal Width | 0.375 INCHES FIRST END IN |
| Spline Pitch Diameter | 1.8750 INCHES NOMINAL BOTH ENDS IN |
| Face Nominal Width | 1.568 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 |
| Reference | Meaning |
|---|---|
| 3892Y2443 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-422-9990 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-422-9990: Bore Nominal Diameter: 2.000 INCHES BOTH ENDS IN; Hub Nominal Diameter: 2.623 INCHES FIRST END IN; Teeth Quantity: 16; Body Style: PLAIN, SOLID. 18 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.