The Gear,spur, cataloged under National Stock Number 3020-00-082-7845, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-082-7845 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.5625 INCHES SECOND END IN |
| Teeth Quantity | 102 |
| Body Style | WEBBED, OFFSET, SOLID |
| Counterbore Nominal Diameter | 1.8752 INCHES SECOND END IN |
| Bore Style | PARTIAL SECOND END |
| Mounting Hole Type and Quantity | 3 PLAIN TRANSVERSELY THROUGH FACE |
| Nominal Distance Between Body Face and Protruding Hub End | 0.3752 INCHES FIRST END IN |
| First Step Nominal Length | 0.094 INCHES FIRST END IN |
| Precision Classification | QUALITY NUMBER 13 |
| Mounting Hole Nominal Diameter | 0.157 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Bore Nominal Depth | 0.0570 INCHES SECOND END IN |
| Pitch Diameter | 2.1250 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 0.500 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 0.5062 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.1655 INCHES IN |
| Surface Treatment | ALUMINUM OVERALL |
| End Nominal Diameter | 0.2500 INCHES FIRST END IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY OVERALL |
| Bolt Hole Circle Nominal Diameter | 1.250 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Counterbore Nominal Depth | 0.0520 INCHES SECOND END IN |
| Attachment Method | MOUNTING HOLE |
| 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 |
|---|---|
| A30439 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-082-7845 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-082-7845: Bore Nominal Diameter: 0.5625 INCHES SECOND END IN; Teeth Quantity: 102; Body Style: WEBBED, OFFSET, SOLID; Counterbore Nominal Diameter: 1.8752 INCHES SECOND END IN. 26 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.