The Gear Cluster, cataloged under National Stock Number 3020-00-706-9342, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-706-9342 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.250 INCHES BOTH ENDSUNABLE TO DECODE IN |
| Hub Nominal Diameter | 0.375 INCHES SECOND ENDUNABLE TO DECODE IN |
| Hub Nominal Diameter | 0.500 INCHES FIRST ENDUNABLE TO DECODE IN |
| Hub Nominal Diameter | 0.682 INCHES BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE IN |
| Design Type | SPUR SECOND GEARUNABLE TO DECODE |
| Design Type | SPUR FIRST GEARUNABLE TO DECODE |
| Bore Style | PLAIN BOTH ENDSUNABLE TO DECODE |
| Precision Classification | QUALITY NUMBER 9 ALL GEARSUNABLE TO DECODE |
| Nominal Overall Length | 0.740 INCHES IN |
| Material Document and Classification | UNABLE TO DECODE |
| Material Document and Classification | QQ-B-639,ALLOY 464 HARD FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| Material Document and Classification | QQ-S-763,CLASS 304L FED SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
| Material Document and Classification | QQ-S-763,CLASS 304L FED SPEC SINGLE MATERIAL RESPONSE SHAFT/HUB |
| Hub Style Designator | PLAIN BOTH ENDSUNABLE TO DECODE |
| Hub Style Designator | PLAIN BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE |
| Hub Nominal Length | 0.0190 INCHES FIRST ENDUNABLE TO DECODE IN |
| Hub Nominal Length | 0.1780 INCHES SECOND ENDUNABLE TO DECODE IN |
| Hub Nominal Length | 0.2930 INCHES BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE IN |
| Nominal Outside Diameter | 0.7917 INCHES SECOND GEARUNABLE TO DECODE IN |
| Nominal Outside Diameter | 3.4167 INCHES FIRST GEARUNABLE TO DECODE IN |
| Surface Treatment | PASSIVATE SECOND GEAR |
| Surface Treatment | PASSIVATE SHAFT/HUB |
| Surface Treatment | UNABLE TO DECODE |
| Surface Treatment | PASSIVATE SECOND GEARUNABLE TO DECODE |
| Material | COPPER ALLOY FIRST GEARUNABLE TO DECODE |
| Material | STEEL COMP 304L SECOND GEARUNABLE TO DECODE |
| Material | STEEL COMP 304L SHAFT/HUBUNABLE TO DECODE |
| Construction | ASSEMBLED |
| Attachment Method | MOUNTING 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 |
| Reference | Meaning |
|---|---|
| B311-336 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-706-9342 is a Gear Cluster, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-706-9342: Bore Nominal Diameter: 0.250 INCHES BOTH ENDSUNABLE TO DECODE IN; Hub Nominal Diameter: 0.375 INCHES SECOND ENDUNABLE TO DECODE IN; Hub Nominal Diameter: 0.500 INCHES FIRST ENDUNABLE TO DECODE IN; Hub Nominal Diameter: 0.682 INCHES BETWEEN FIRST AND SECOND GEARUNABLE TO DECODE IN. 29 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 3020-00-706-9342 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.