The Gear Cluster, cataloged under National Stock Number 3020-00-102-0140, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-102-0140 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.1247 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.2833 INCHES FIRST END IN |
| Design Type | SPUR SECOND GEAR |
| Design Type | SPUR FIRST GEAR |
| Bore Style | PLAIN BOTH ENDS |
| Precision Classification | QUALITY NUMBER 9 FIRST GEAR |
| Nominal Overall Length | 0.125 INCHES IN |
| Material Document and Classification | AMS 4631 ASSN STD SINGLE MATERIAL RESPONSE SECOND GEAR |
| Material Document and Classification | QQ-B-613,ALLOY 342 FED SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| Hub Style Designator | PLAIN FIRST END |
| Hub Nominal Length | 0.016 INCHES FIRST END IN |
| Nominal Outside Diameter | 0.2827 INCHES SECOND GEAR IN |
| Nominal Outside Diameter | 0.7652 INCHES FIRST GEAR IN |
| Material | COPPER ALLOY FIRST GEAR |
| Material | COPPER ALLOY 642 SECOND GEAR |
| 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 |
| Reference | Meaning |
|---|---|
| 1626059-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-102-0140 is a Gear Cluster, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-102-0140: Bore Nominal Diameter: 0.1247 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.2833 INCHES FIRST END IN; Design Type: SPUR SECOND GEAR; Design Type: SPUR FIRST GEAR. 16 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 3020-00-102-0140 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.