The Gear Cluster, cataloged under National Stock Number 3020-00-320-0987, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 11 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 | 3020-00-320-0987 |
| Primary Part Number | 1020940 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.3750 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Overall Length | 0.422 INCHES IN |
| Hub Style Designator | PLAIN FIRST END |
| Hub Nominal Length | 0.0780 INCHES FIRST END IN |
| Hub Nominal Length | 0.150 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 1.0625 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 1.4060 INCHES FIRST GEAR IN |
| 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 |
|---|---|
| 1020940 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-00-320-0987 is a Gear Cluster, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-320-0987 has 1 manufacturer part number on file: 1020940 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 1020940: Hub Nominal Diameter: 0.3750 INCHES BETWEEN FIRST AND SECOND GEAR IN; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR; Bore Style: PLAIN BOTH ENDS. 11 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.