The Gear,spur, cataloged under National Stock Number 3020-00-679-9518, 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15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-679-9518 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.500 INCHES FIRST END IN |
| Teeth Quantity | 20 |
| Body Style | PLAIN, SOLID |
| Bore Style | FLATTED SIDES BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.156 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | GRADE GB-112T,FSCM 10017 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Pitch Diameter | 0.6250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 0.687 INCHES IN |
| Nominal Radius | 0.125 INCHES BOTH ENDS IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | PLASTIC AND GLASS OVERALL |
| Face Nominal Width | 0.156 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 |
|---|---|
| 544-0010-002 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 544-0010-002 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-00-679-9518 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-679-9518: Hub Nominal Diameter: 0.500 INCHES FIRST END IN; Teeth Quantity: 20; Body Style: PLAIN, SOLID; Bore Style: FLATTED SIDES BOTH ENDS. 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.