The Gear Cluster, cataloged under National Stock Number 3020-00-563-2973, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-563-2973 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.343 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.625 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Counterbore Nominal Diameter | 0.8500 INCHES SECOND END IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | W/COUNTERBORE SECOND END |
| Nominal Overall Length | 0.338 INCHES IN |
| Hub Style Designator | 1 STEP BETWEEN FIRST AND SECOND GEAR |
| Hub Nominal Length | 0.139 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 1.0937 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 1.9167 INCHES FIRST GEAR IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Counterbore Nominal Depth | 0.230 INCHES SECOND END IN |
| Construction | SOLID |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 9893325P1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-563-2973 is a Gear Cluster, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-563-2973: Bore Nominal Diameter: 0.343 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.625 INCHES BETWEEN FIRST AND SECOND GEAR IN; Counterbore Nominal Diameter: 0.8500 INCHES SECOND END IN; Design Type: SPUR SECOND GEAR. 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.