The Gear Sector,spur, cataloged under National Stock Number 3020-00-460-9482, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Harder Precision Components Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-460-9482 |
| Primary Part Number | 687120-1 |
| Item Name | Gear Sector,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Harder Precision Components Inc |
| Status | ACTIVE |
| Hub Nominal Diameter | 0.749 INCHES FIRST END IN |
| Teeth Quantity | 133 |
| Mounting Hole Type and Quantity | 2 PLAIN AXIALLY THROUGH BODY FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.2820 INCHES FIRST END IN |
| Mounting Hole Nominal Diameter | 0.166 INCHES AXIALLY THROUGH BODY FIRST END IN |
| Nominal Overall Length | 0.500 INCHES IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Surface Treatment | PASSIVATE OVERALL |
| Pressure Angle | 20.0000 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.218 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 |
| Part Number | Manufacturer |
|---|---|
| 687120-1 PRIMARY | Harder Precision Components Inc (USA) |
| Reference | Meaning |
|---|---|
| 687120-1 | 5/2 Secondary reference U.S. Government activity |
NSN 3020-00-460-9482 is a Gear Sector,spur, manufactured by Harder Precision Components Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-460-9482 has 1 manufacturer part number on file: 687120-1 (Harder Precision Components Inc).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-082-9577. Verify interchangeability with system specifications before substitution.
Key specifications for 687120-1: Hub Nominal Diameter: 0.749 INCHES FIRST END IN; Teeth Quantity: 133; Mounting Hole Type and Quantity: 2 PLAIN AXIALLY THROUGH BODY FIRST END; Nominal Distance Between Body Face and Protruding Hub End: 0.2820 INCHES FIRST END IN. 13 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.