The Gear Cluster, cataloged under National Stock Number 3020-00-780-5909, 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 Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-780-5909 |
| Primary Part Number | 169111 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.375 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.662 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Diameter | 0.662 INCHES BETWEEN SECOND AND THIRD GEAR IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Design Type | SPUR THIRD GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Overall Length | 2.500 INCHES IN |
| Hub Nominal Length | 0.385 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Length | 0.385 INCHES BETWEEN SECOND AND THIRD GEAR IN |
| Nominal Outside Diameter | 0.982 INCHES FIRST GEAR IN |
| Nominal Outside Diameter | 0.982 INCHES THIRD GEAR IN |
| Nominal Outside Diameter | 1.056 INCHES SECOND GEAR IN |
| Material | STEEL OVERALL |
| Construction | SOLID |
| 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 |
|---|---|
| 169111 PRIMARY | Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division (USA) |
| Reference | Meaning |
|---|---|
| 169111 | 5/9 Secondary reference Bachan Aerospace Corp |
NSN 3020-00-780-5909 is a Gear Cluster, manufactured by Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-780-5909 has 1 manufacturer part number on file: 169111 (Curtiss-Wright Controls, Inc. Dba Curtiss Wright Div Actuation Division).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-330-8228. Verify interchangeability with system specifications before substitution.
Key specifications for 169111: Bore Nominal Diameter: 0.375 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.662 INCHES BETWEEN FIRST AND SECOND GEAR IN; Hub Nominal Diameter: 0.662 INCHES BETWEEN SECOND AND THIRD GEAR 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.