The Gear Cluster, cataloged under National Stock Number 3020-00-549-4784, 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16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-549-4784 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.016 INCHES BOTH ENDS IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Nominal Overall Length | 0.280 INCHES IN |
| Material Document and Classification | QQ-B-618,ALLOY 342 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| Material Document and Classification | QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
| Hub Style Designator | 2 STEPS FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Hub Nominal Length | 0.0480 INCHES SECOND END IN |
| Hub Nominal Length | 0.1160 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.1570 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 0.4609 INCHES FIRST GEAR IN |
| Material | STEEL SHAFT/HUB |
| Material | COPPER ALLOY 342 FIRST GEAR |
| Material | STEEL COMP 303 AND STEEL COMP 303SE SECOND GEAR |
| Construction | ASSEMBLED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1627928-1 | 3/2 Design control — primary reference U.S. Government activity |
| 1627928 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-00-549-4784 is a Gear Cluster, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-549-4784: Hub Nominal Diameter: 0.016 INCHES BOTH ENDS IN; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR; Nominal Overall Length: 0.280 INCHES IN. 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.
NSN 3020-00-549-4784 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.