The Gear Cluster, cataloged under National Stock Number 3020-00-679-2178, 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 Us Army Aviation and Missile Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-679-2178 |
| Primary Part Number | 9063229 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDS IN |
| Backlash Designation | GRADE E ALL GEARS |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Overall Length | 1.000 INCHES IN |
| Material Document and Classification | QQ-A-225/4 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| Material Document and Classification | QQ-A-268,T4 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
| Hub Nominal Length | 0.125 INCHES FIRST END IN |
| Hub Nominal Length | 0.078 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Hub Nominal Length | 0.7970 INCHES SECOND END IN |
| Nominal Outside Diameter | 1.6850 INCHES FIRST GEAR IN |
| Nominal Outside Diameter | 2.2500 INCHES SECOND GEAR IN |
| Material | ALUMINUM ALLOY FIRST GEAR |
| Material | ALUMINUM ALLOY 2024 SECOND 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 |
|---|---|
| 9063229 | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| A97-202 | 3/9 Design control — primary reference Arch Gear Works Inc |
NSN 3020-00-679-2178 is a Gear Cluster, manufactured by Us Army Aviation and Missile Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-679-2178 has 1 manufacturer part number on file: 9063229 (Us Army Aviation and Missile Command).
Key specifications for 9063229: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Backlash Designation: GRADE E ALL GEARS; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR. 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.
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.