The Gear Cluster, cataloged under National Stock Number 3020-00-504-1541, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-504-1541 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.2400 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Diameter | 0.550 INCHES BETWEEN THIRD AND FOURTH GEAR IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Design Type | SPUR THIRD GEAR |
| Design Type | SPUR FOURTH GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Overall Length | 0.619 INCHES IN |
| Hub Style Designator | PLAIN FIRST END |
| Hub Nominal Length | 0.040 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Length | 0.040 INCHES BETWEEN SECOND AND THIRD GEAR IN |
| Hub Nominal Length | 0.4000 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.458 INCHES FIRST GEAR IN |
| Nominal Outside Diameter | 0.6563 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 1.0000 INCHES THIRD GEAR IN |
| Construction | ASSEMBLED |
| 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 |
|---|---|
| 0154-1-4021 | 3/9 Design control — primary reference Usacecom Intelligence Electronic Warfare Sensors Directorate |
NSN 3020-00-504-1541 is a Gear Cluster, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-504-1541: Hub Nominal Diameter: 0.2400 INCHES BETWEEN FIRST AND SECOND GEAR IN; Hub Nominal Diameter: 0.550 INCHES BETWEEN THIRD AND FOURTH GEAR IN; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR. 16 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.