The Gear Cluster, cataloged under National Stock Number 3020-00-504-7563, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Honeywell Intl Inc Defense Avionics Systems. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-504-7563 |
| Primary Part Number | 2273631-0001 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Honeywell Intl Inc Defense Avionics Systems |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.094 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.250 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Design Type | SPUR, ANTI-BACKLASH FIRST GEAR |
| Design Type | SPUR, ANTI-BACKLASH SECOND GEAR |
| Nominal Overall Length | 1.297 INCHES IN |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | 1 STEP BOTH ENDS |
| Hub Nominal Length | 0.141 INCHES FIRST END IN |
| Hub Nominal Length | 0.062 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Length | 0.0700 INCHES BETWEEN SECOND AND THIRD GEAR IN |
| Hub Nominal Length | 0.9687 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.7375 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 0.7750 INCHES FIRST GEAR IN |
| Surface Treatment | PASSIVATE SHAFT/HUB |
| Material | STEEL CORROSION RESISTING SHAFT/HUB |
| Material | COPPER ALLOY SECOND GEAR |
| Material | COPPER ALLOY FIRST GEAR |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 2273631-0001 PRIMARY | Honeywell Intl Inc Defense Avionics Systems (USA) |
NSN 3020-00-504-7563 is a Gear Cluster, manufactured by Honeywell Intl Inc Defense Avionics Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-504-7563 has 1 manufacturer part number on file: 2273631-0001 (Honeywell Intl Inc Defense Avionics Systems).
Key specifications for 2273631-0001: Hub Nominal Diameter: 0.094 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.250 INCHES BETWEEN FIRST AND SECOND GEAR IN; Design Type: SPUR, ANTI-BACKLASH FIRST GEAR; Design Type: SPUR, ANTI-BACKLASH SECOND GEAR. 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.