The Gear Sector,spur, cataloged under National Stock Number 3020-01-087-4796, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-087-4796 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.750 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 1.8898 INCHES FIRST END IN |
| Teeth Quantity | 130 |
| Nominal Outside Radius | 1.2500 INCHES IN |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 3 COUNTERSUNK TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.1400 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.136 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Nominal Overall Length | 0.330 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Arc Nominal Length | 4.4289 INCHES IN |
| Pitch Radius | 1.0156 INCHES NOMINAL IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY OVERALL |
| Bolt Hole Circle Nominal Diameter | 1.100 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.190 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 |
|---|---|
| 583R552H03 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-087-4796 is a Gear Sector,spur, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-087-4796: Bore Nominal Diameter: 1.750 INCHES BOTH ENDS IN; Hub Nominal Diameter: 1.8898 INCHES FIRST END IN; Teeth Quantity: 130; Nominal Outside Radius: 1.2500 INCHES IN. 19 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.