The Gear Sector,spur, cataloged under National Stock Number 3020-00-152-9828, 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18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-00-152-9828 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.378 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 4.580 INCHES FIRST END IN |
| Counterbore Nominal Diameter | 3.844 INCHES COUNTERBORE FIRST END IN |
| Bore Style | W/COUNTERBORE COUNTERBORE FIRST END |
| Mounting Hole Type and Quantity | 4 COUNTERBORED AND 4 PLAIN AXIALLY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.350 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.196 INCHES AND 0.188 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Material Document and Classification | MIL-C-20159,TY 1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Surface Treatment | OXIDE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | COPPER ALLOY 964 OVERALL |
| Bolt Hole Circle Nominal Diameter | 4.225 INCHES AXIALLY THROUGH HUB FIRST END IN |
| Counterbore Nominal Depth | 0.450 INCHES COUNTERBORE FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.625 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 |
|---|---|
| 66312-301 | 3/9 Design control — primary reference U.S. Government activity |
NSN 3020-00-152-9828 is a Gear Sector,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-00-152-9828: Bore Nominal Diameter: 2.378 INCHES BOTH ENDS IN; Hub Nominal Diameter: 4.580 INCHES FIRST END IN; Counterbore Nominal Diameter: 3.844 INCHES COUNTERBORE FIRST END IN; Bore Style: W/COUNTERBORE COUNTERBORE 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.