The Gear Cluster, cataloged under National Stock Number 3020-01-031-7464, 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 Us Army Aviation and Missile Command. Government technical data includes 24 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-031-7464 |
| Primary Part Number | 10247686 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Bore Nominal Diameter | UNABLE TO DECODE0.125 INCHES BOTH ENDS0.125 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | UNABLE TO DECODE0.312 INCHES FIRST END0.312 INCHES FIRST END IN |
| Backlash Designation | UNABLE TO DECODEGRADE E FIRST GEARGRADE E FIRST GEAR |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE SECOND GEARMIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE SECOND GEAR |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEARUNABLE TO DECODE |
| Surface Treatment Document and Classification | UNABLE TO DECODEMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEARMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE FIRST GEAR |
| Design Type | UNABLE TO DECODESPUR SECOND GEARSPUR SECOND GEAR |
| Design Type | UNABLE TO DECODESPUR FIRST GEARSPUR FIRST GEAR |
| Bore Style | UNABLE TO DECODEPLAIN BOTH ENDSPLAIN BOTH ENDS |
| Nominal Overall Length | 0.400 INCHES0.400 INCHES IN |
| Material Document and Classification | UNABLE TO DECODEQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEARQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
| Material Document and Classification | UNABLE TO DECODEQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SHAFT/HUBQQ-A-225/6,ALLOY 2024,T4 FED SPEC SINGLE MATERIAL RESPONSE SHAFT/HUB |
| Material Document and Classification | UNABLE TO DECODEQQ-A-225/6,ALLOY 2024,T6 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEARQQ-A-225/6,ALLOY 2024,T6 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| Hub Style Designator | UNABLE TO DECODE2 STEPS BOTH ENDS2 STEPS BOTH ENDS |
| Hub Nominal Length | UNABLE TO DECODE0.2380 INCHES FIRST END0.2380 INCHES FIRST END IN |
| Nominal Outside Diameter | UNABLE TO DECODE0.499 INCHES SECOND GEAR0.499 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | UNABLE TO DECODE0.860 INCHES FOURTH GEAR0.860 INCHES FOURTH GEAR IN |
| Surface Treatment | UNABLE TO DECODEANODIZE SECOND GEARANODIZE SECOND GEAR |
| Surface Treatment | UNABLE TO DECODECHROMATE FIRST GEARCHROMATE FIRST GEAR |
| Material | UNABLE TO DECODEALUMINUM ALLOY 2024 FIRST GEARALUMINUM ALLOY 2024 FIRST GEAR |
| Material | UNABLE TO DECODEALUMINUM ALLOY 2024 SECOND GEARALUMINUM ALLOY 2024 SECOND GEAR |
| Material | UNABLE TO DECODEALUMINUM ALLOY 2024 SHAFT/HUBALUMINUM ALLOY 2024 SHAFT/HUB |
| Construction | ASSEMBLEDASSEMBLED |
| Attachment Method | MOUNTING HOLEMOUNTING HOLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 10247686 PRIMARY | Us Army Aviation and Missile Command (USA) |
| Reference | Meaning |
|---|---|
| 10247686 | 5/9 Secondary reference Zagora Gear Products Inc |
NSN 3020-01-031-7464 is a Gear Cluster, manufactured by Us Army Aviation and Missile Command, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-031-7464 has 1 manufacturer part number on file: 10247686 (Us Army Aviation and Missile Command).
Key specifications for 10247686: Bore Nominal Diameter: UNABLE TO DECODE0.125 INCHES BOTH ENDS0.125 INCHES BOTH ENDS IN; Hub Nominal Diameter: UNABLE TO DECODE0.312 INCHES FIRST END0.312 INCHES FIRST END IN; Backlash Designation: UNABLE TO DECODEGRADE E FIRST GEARGRADE E FIRST GEAR; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE SECOND GEARMIL-A-8625,TYPE 2,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE SECOND GEAR. 24 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 3020-01-031-7464 has DEMIL Code B. 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.