The Gear Cluster, cataloged under National Stock Number 3020-01-282-5180, 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 15 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-282-5180 |
| Primary Part Number | 2163144 |
| 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 |
| Bore Nominal Diameter | 0.188 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.370 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Surface Treatment Document and Classification | MIL-A-8625 TYPE I MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Design Type | SPUR ALL GEARS |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Overall Length | 0.406 INCHES IN |
| Material Document and Classification | 2024 T4 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225 TEMP T4 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PINNED BETWEEN FIRST AND SECOND GEAR |
| Hub Nominal Length | 0.187 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 0.457 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 1.061 INCHES FIRST GEAR IN |
| Surface Treatment | ANODIZE OVERALL |
| Material | ALUMINUM ALLOY OVERALL |
| Construction | SOLID |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| 2163144 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-01-282-5180 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 3020-01-282-5180 has 1 manufacturer part number on file: 2163144 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-493-2142. Verify interchangeability with system specifications before substitution.
Key specifications for 2163144: Bore Nominal Diameter: 0.188 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.370 INCHES BETWEEN FIRST AND SECOND GEAR IN; Surface Treatment Document and Classification: MIL-A-8625 TYPE I MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Design Type: SPUR ALL GEARS. 15 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.