The Gear Cluster, cataloged under National Stock Number 3020-01-111-3038, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-111-3038 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.024 INCHES BOTH ENDSUNABLE TO DECODE IN |
| Hub Nominal Diameter | 3.1680 INCHES BETWEEN SECOND AND THIRD GEAR IN |
| Hub Nominal Diameter | 3.1680 INCHES BETWEEN SECOND AND THIRD GEARUNABLE TO DECODE IN |
| Counterbore Nominal Diameter | 1.969 INCHES SECOND ENDUNABLE TO DECODE IN |
| Design Type | SPUR SECOND GEARUNABLE TO DECODE |
| Design Type | SPUR FIRST GEARUNABLE TO DECODE |
| Design Type | SPUR THIRD GEARUNABLE TO DECODE |
| Bore Style | INVOLUTE SPLINE BOTH ENDSUNABLE TO DECODE |
| Hardness Rating | 83.0 ROCKWELL A NOMINAL OVERALLUNABLE TO DECODE |
| Nominal Overall Length | 3.111 INCHES IN |
| Material Document and Classification | UNABLE TO DECODE |
| Material Document and Classification | AMS 6265 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN SECOND ENDUNABLE TO DECODE |
| Hub Style Designator | 1 GROOVE BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE |
| Spline Quantity | 21 SECOND ENDUNABLE TO DECODE |
| Hub Nominal Length | 0.433 INCHES BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE IN |
| Hub Nominal Length | 0.547 INCHES SECOND ENDUNABLE TO DECODE IN |
| Hub Nominal Length | 0.800 INCHES FIRST ENDUNABLE TO DECODE IN |
| Nominal Outside Diameter | 2.8200 INCHES THIRD GEARUNABLE TO DECODE IN |
| Nominal Outside Diameter | 2.9000 INCHES FIRST GEARUNABLE TO DECODE IN |
| Nominal Outside Diameter | 3.8000 INCHES SECOND GEARUNABLE TO DECODE IN |
| Material | STEEL COMP E9310 OVERALL |
| Material | STEEL COMP E9310 OVERALLUNABLE TO DECODE |
| Counterbore Nominal Depth | 0.404 INCHES SECOND ENDUNABLE TO DECODE IN |
| Spline Pitch Diameter | 1.0500 INCHES NOMINAL SECOND ENDUNABLE TO DECODE IN |
| Construction | SOLID |
| 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 |
| Reference | Meaning |
|---|---|
| 716316 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-01-111-3038 is a Gear Cluster, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-111-3038: Bore Nominal Diameter: 1.024 INCHES BOTH ENDSUNABLE TO DECODE IN; Hub Nominal Diameter: 3.1680 INCHES BETWEEN SECOND AND THIRD GEAR IN; Hub Nominal Diameter: 3.1680 INCHES BETWEEN SECOND AND THIRD GEARUNABLE TO DECODE IN; Counterbore Nominal Diameter: 1.969 INCHES SECOND ENDUNABLE TO DECODE IN. 26 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 3020-01-111-3038 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.