The Gear Cluster, cataloged under National Stock Number 3020-00-573-7376, 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 Simmonds Precision Products Inc. Government technical data includes 17 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 | 3020-00-573-7376 |
| Primary Part Number | AA3228 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Simmonds Precision Products Inc |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.125 INCHES SECOND END IN |
| Hub Nominal Diameter | 0.250 INCHES FIRST END IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Nominal Overall Length | 0.525 INCHES IN |
| Hub Style Designator | 1 STEP FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Hub Nominal Length | 0.113 INCHES FIRST END IN |
| Hub Nominal Length | 0.100 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.297 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 0.604 INCHES FIRST GEAR IN |
| Surface Treatment | OXIDE SECOND GEAR |
| Surface Treatment | OXIDE SHAFT/HUB |
| Material | STEEL SECOND GEAR |
| Material | STEEL SHAFT/HUB |
| 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 |
|---|---|
| AA3228 PRIMARY | Simmonds Precision Products Inc (USA) |
NSN 3020-00-573-7376 is a Gear Cluster, manufactured by Simmonds Precision Products Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-573-7376 has 1 manufacturer part number on file: AA3228 (Simmonds Precision Products Inc).
Key specifications for AA3228: Hub Nominal Diameter: 0.125 INCHES SECOND END IN; Hub Nominal Diameter: 0.250 INCHES FIRST END IN; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR. 17 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.