The Gear Cluster, cataloged under National Stock Number 3020-00-564-9290, 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 International Inc. Div Aerospace - Torrance. Government technical data includes 19 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 | 3020-00-564-9290 |
| Primary Part Number | 2039831-1 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Keyway Nominal Width | 0.063 INCHES BOTH ENDS IN |
| Bore Nominal Diameter | 0.320 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.480 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.150 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Surface Treatment Document and Classification | MIL-C-8837,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | W/ KEYWAY BOTH ENDS |
| Nominal Overall Length | 0.645 INCHES IN |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | PLAIN SECOND END |
| Hub Nominal Length | 0.0730 INCHES SECOND END IN |
| Hub Nominal Length | 0.150 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 1.9989 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 2.2924 INCHES FIRST GEAR IN |
| Nominal Distance From Bore Center to Keyway Bottom | 0.200 INCHES BOTH ENDS IN |
| Surface Treatment | CADMIUM OVERALL |
| 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 |
|---|---|
| 2039831-1 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
NSN 3020-00-564-9290 is a Gear Cluster, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-564-9290 has 1 manufacturer part number on file: 2039831-1 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 2039831-1: Keyway Nominal Width: 0.063 INCHES BOTH ENDS IN; Bore Nominal Diameter: 0.320 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.480 INCHES SECOND END IN; Hub Nominal Diameter: 0.150 INCHES BETWEEN FIRST AND SECOND GEAR IN. 19 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.