The Gear Sector,helical, cataloged under National Stock Number 3020-01-464-4143, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-464-4143 |
| Item Name | Gear Sector,helical |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Helix Angle | 1.7849 DEGREES |
| Teeth Quantity | 36 |
| Tooth Direction | LEFT AND RIGHT |
| Teeth Type | SINGLE HELIX |
| Style Designator | HUBLESS |
| Pitch Diameter | 5.2500 INCHES MINIMUM IN |
| Nominal Outside Diameter | 6.325 INCHES IN |
| Pressure Angle | 4.5000 DEGREES |
| Material | BRONZE OVERALL |
| Face Nominal Width | 4.758 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 |
|---|---|
| 124-1998844 PC 22 | 3/2 Design control — primary reference U.S. Government activity |
| 124-1998732 PART NO.42 | 3/2 Design control — primary reference U.S. Government activity |
| 1998732 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-464-4143 is a Gear Sector,helical, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-464-4143: Helix Angle: 1.7849 DEGREES; Teeth Quantity: 36; Tooth Direction: LEFT AND RIGHT; Teeth Type: SINGLE HELIX. 10 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.