The Gear Sector,spur, cataloged under National Stock Number 3020-01-256-4893, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-256-4893 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Teeth Quantity | 29 |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 5 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Outside Radius | 1.354 INCHES IN |
| Precision Classification | QUALITY NUMBER 10 |
| Tooth Form | STANDARD |
| Arc Nominal Length | 1.898 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Pitch Radius | 1.3333 INCHES NOMINAL IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2901530-1 | 3/2 Design control — primary reference U.S. Government activity |
| 2901530 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-256-4893 is a Gear Sector,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-256-4893: Teeth Quantity: 29; Surface Treatment Document and Classification: QQ-P-35,TYPE 5 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Nominal Outside Radius: 1.354 INCHES IN; Precision Classification: QUALITY NUMBER 10. 10 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.
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.