The Gear Cluster, cataloged under National Stock Number 3020-01-172-0785, 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 21 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 | 3020-01-172-0785 |
| Primary Part Number | 2526769 |
| 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 | 0.750 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.109 INCHES SECOND END IN |
| Hub Nominal Diameter | 1.406 INCHES FIRST END IN |
| Hub Nominal Diameter | 1.109 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Counterbore Nominal Diameter | 0.866 INCHES SECOND END IN |
| Counterbore Nominal Diameter | 1.023 INCHES FIRST END IN |
| Design Type | SPUR ALL GEARS |
| Bore Style | W/COUNTERBORE BOTH ENDS |
| Nominal Overall Length | 1.375 INCHES IN |
| Material Document and Classification | AMS6470 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEAR |
| Hub Style Designator | PLAIN BOTH ENDS |
| Hub Nominal Length | 0.130 INCHES FIRST END IN |
| Hub Nominal Length | 0.045 INCHES SECOND END IN |
| Hub Nominal Length | 0.200 INCHES BETWEEN FIRST AND SECOND GEAR IN |
| Nominal Outside Diameter | 1.332 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 2.707 INCHES FIRST GEAR IN |
| Material | STEEL UNS K24065 OVERALL |
| Counterbore Nominal Depth | 0.375 INCHES FIRST END IN |
| Counterbore Nominal Depth | 0.340 INCHES SECOND END IN |
| Construction | ASSEMBLED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2526769 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-01-172-0785 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 3020-01-172-0785 has 1 manufacturer part number on file: 2526769 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2526769: Bore Nominal Diameter: 0.750 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.109 INCHES SECOND END IN; Hub Nominal Diameter: 1.406 INCHES FIRST END IN; Hub Nominal Diameter: 1.109 INCHES BETWEEN FIRST AND SECOND GEAR IN. 21 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.
NSN 3020-01-172-0785 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.