The Gear Cluster, cataloged under National Stock Number 3020-01-273-0879, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-273-0879 |
| Item Name | Gear Cluster |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.249 INCHES FIRST END IN |
| Hub Nominal Diameter | 0.303 INCHES SECOND END IN |
| Surface Treatment Document and Classification | MIL-T-10727 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| Design Type | SPUR ALL GEARS |
| Nominal Overall Length | 0.397 INCHES IN |
| Material Document and Classification | MIL-S-6709 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PLAIN FIRST END |
| Hub Nominal Length | 0.142 INCHES FIRST END IN |
| Nominal Outside Diameter | 1.030 INCHES FIRST GEAR IN |
| Surface Treatment | TIN OVERALL |
| Material | STEEL OVERALL |
| Construction | SOLID |
| 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 |
|---|---|
| 2472201-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-273-0879 is a Gear Cluster, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-273-0879: Hub Nominal Diameter: 0.249 INCHES FIRST END IN; Hub Nominal Diameter: 0.303 INCHES SECOND END IN; Surface Treatment Document and Classification: MIL-T-10727 MIL STD SINGLE TREATMENT RESPONSE OVERALL; Design Type: SPUR ALL GEARS. 12 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 3020-01-273-0879 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.