The Gear Cluster, cataloged under National Stock Number 3020-00-944-1572, 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 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 16 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 | 3020-00-944-1572 |
| Primary Part Number | 549-4097-002 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.124 INCHES BOTH ENDS IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Nominal Overall Length | 0.898 INCHES IN |
| Hub Style Designator | 2 STEPS FIRST END |
| Hub Style Designator | 1 STEP SECOND END |
| Hub Nominal Length | 0.328 INCHES FIRST END IN |
| Hub Nominal Length | 0.258 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.3958 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 1.031 INCHES FIRST GEAR IN |
| Surface Treatment | PASSIVATE SECOND GEAR |
| Surface Treatment | PASSIVATE SHAFT/HUB |
| Surface Treatment | ANODIZE FIRST GEAR |
| Material | ALUMINUM ALLOY FIRST GEAR |
| Material | STEEL CORROSION RESISTING SHAFT/HUB |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 549-4097-002 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 3020-00-944-1572 is a Gear Cluster, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-944-1572 has 1 manufacturer part number on file: 549-4097-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 549-4097-002: Hub Nominal Diameter: 0.124 INCHES BOTH ENDS IN; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR; Nominal Overall Length: 0.898 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 3020-00-944-1572 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.