The Gear,spur, cataloged under National Stock Number 3020-00-528-4082, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-528-4082 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.250 INCHES COUNTERBORE FIRST END IN |
| Hub Nominal Diameter | 2.6200 INCHES FIRST END IN |
| Teeth Quantity | 30 |
| Body Style | WEBBED, OFFSET, WITH LIGHTENING HOLES |
| Counterbore Nominal Diameter | 2.3755 INCHES COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Mounting Hole Type and Quantity | 2 THREADED AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.120 INCHES FIRST END IN |
| Hardness Rating | 58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM TEETH |
| Hardness Rating | 25.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM BODY |
| Style Designator | PROTRUDING HUB, RECESSED BODY |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 3.0000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Mounting Hole Nominal Thread Size | 0.250 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Outside Diameter | 3.1635 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL COMP 8620 OVERALL |
| Counterbore Nominal Depth | 0.280 INCHES COUNTERBORE FIRST END IN |
| Mounting Hole Thread Series Designator | UNF AXIALLY THROUGH BODY FIRST END |
| Attachment Method | MOUNTING HOLE |
| Body Recess Nominal Depth | 0.250 INCHES SECOND END IN |
| Face Nominal Width | 0.690 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 |
|---|---|
| 536360 | 3/9 Design control — primary reference Teledyne Industries Inc Teledyne Power Systems Div |
NSN 3020-00-528-4082 is a Gear,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-528-4082: Bore Nominal Diameter: 1.250 INCHES COUNTERBORE FIRST END IN; Hub Nominal Diameter: 2.6200 INCHES FIRST END IN; Teeth Quantity: 30; Body Style: WEBBED, OFFSET, WITH LIGHTENING HOLES. 24 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.