The Gear Cluster, cataloged under National Stock Number 3020-00-415-6523, 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 20 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 | 3020-00-415-6523 |
| Primary Part Number | 2852308 |
| 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 | 0.250 INCHES BOTH ENDS IN |
| Surface Treatment Document and Classification | MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 12 ALL GEARS |
| Nominal Overall Length | 0.386 INCHES IN |
| Material Document and Classification | ASTM B150,ALLOY 623 ASSN STD SINGLE MATERIAL RESPONSE SECOND GEAR |
| Material Document and Classification | QQ-S-763,CLASS 303,COND A FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| Hub Style Designator | PLAIN FIRST END |
| Hub Style Designator | PLAIN SECOND END |
| Hub Nominal Length | 0.120 INCHES FIRST END IN |
| Hub Nominal Length | 0.0140 INCHES SECOND END IN |
| Nominal Outside Diameter | 0.331 INCHES FIRST GEAR IN |
| Nominal Outside Diameter | 1.237 INCHES SECOND GEAR IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL COMP 303 FIRST GEAR |
| Material | COPPER ALLOY SECOND 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 |
|---|---|
| 2852308 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 3020-00-415-6523 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 3020-00-415-6523 has 1 manufacturer part number on file: 2852308 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 2852308: Bore Nominal Diameter: 0.188 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Surface Treatment Document and Classification: MIL-STD-171,FINISH NO. 5.4.1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Design Type: SPUR SECOND GEAR. 20 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.