The Gear,spur, cataloged under National Stock Number 3020-01-013-8780, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-013-8780 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Hub Nominal Diameter | 3.2130 INCHES FIRST END IN |
| Teeth Quantity | 100 |
| Counterbore Nominal Diameter | 3.812 INCHES SECOND END IN |
| Mounting Hole Type and Quantity | 4 PLAIN AND 6 PLAIN AXIALLY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.7630 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.237 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | AMS6265 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 4.1666 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Features Provided | CASEHARDENED |
| Hub Style Designator | PLAIN FIRST END |
| Nominal Outside Diameter | 4.2500 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Material | STEEL OVERALL |
| Counterbore Nominal Depth | 0.125 INCHES SECOND END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.351 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 |
|---|---|
| 714609 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-013-8780 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-013-8780: Hub Nominal Diameter: 3.2130 INCHES FIRST END IN; Teeth Quantity: 100; Counterbore Nominal Diameter: 3.812 INCHES SECOND END IN; Mounting Hole Type and Quantity: 4 PLAIN AND 6 PLAIN AXIALLY THROUGH HUB FIRST END. 18 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.