The Gear Sector,spur, cataloged under National Stock Number 3020-00-979-4408, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-979-4408 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.3750 INCHES FIRST END IN |
| Teeth Quantity | 9 |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Nominal Distance Between Body Face and Protruding Hub End | 0.1250 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 10 OR QUALITY NUMBER 11 |
| Nominal Overall Length | 0.250 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | QQ-A-267,T3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Hub Style Designator | PINNED FIRST END |
| Surface Treatment | ANODIZE OVERALL |
| Pitch Radius | 0.9375 INCHES NOMINAL IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | ALUMINUM OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.125 INCHES IN |
| 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 |
|---|---|
| 3318-245 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-979-4408 is a Gear Sector,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-979-4408: Hub Nominal Diameter: 0.3750 INCHES FIRST END IN; Teeth Quantity: 9; Surface Treatment Document and Classification: MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Nominal Distance Between Body Face and Protruding Hub End: 0.1250 INCHES FIRST END IN. 15 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.