The Gear Cluster, cataloged under National Stock Number 3020-01-028-5330, 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 18 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 | 3020-01-028-5330 |
| Primary Part Number | 2893887 |
| 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 | 25.0 MILLIMETERS BOTH ENDS MM |
| Hub Nominal Diameter | 37.0 MILLIMETERS BETWEEN FIRST AND SECOND GEAR MM |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Hardness Rating | 58.0 ROCKWELL C NOMINAL OVERALL |
| Nominal Overall Length | 135.0 MILLIMETERS MM |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 9310 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | 2 STEPS FIRST END |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | 1 STEP SECOND END |
| Hub Nominal Length | 36.0 MILLIMETERS FIRST END MM |
| Hub Nominal Length | 10.0 MILLIMETERS BETWEEN FIRST AND SECOND GEAR MM |
| Hub Nominal Length | 35.0 MILLIMETERS SECOND END MM |
| Nominal Outside Diameter | 143.7 MILLIMETERS FIRST GEAR MM |
| Nominal Outside Diameter | 53.1 MILLIMETERS SECOND GEAR MM |
| Surface Treatment | OXIDE OVERALL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 2893887 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-01-028-5330 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 3020-01-028-5330 has 1 manufacturer part number on file: 2893887 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2893887: Hub Nominal Diameter: 25.0 MILLIMETERS BOTH ENDS MM; Hub Nominal Diameter: 37.0 MILLIMETERS BETWEEN FIRST AND SECOND GEAR MM; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR. 18 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.