The Gear,worm, cataloged under National Stock Number 3020-01-289-3343, is classified within Federal Supply Class 3020 (Gears, Pulleys, Sprockets, and Transmission Chain) of the Mechanical Power Transmission Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3020-01-289-3343 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Status | ACTIVE |
| Thread Form Direction | RIGHT-HAND |
| Bore Nominal Diameter | 0.500 INCHES FIRST END IN |
| Helix Angle | 0.025 RADIANS |
| Bore Style | PARTIAL FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.187 INCHES FIRST END IN |
| Face Type | CONCAVE |
| Mating Pitch Diameter | 13.2 MILLIMETERS NOMINAL MM |
| Style Designator | PROTRUDING HUB |
| Bore Nominal Depth | 0.750 INCHES FIRST END IN |
| Pitch Diameter | 5.5000 INCHES NOMINAL IN |
| Thread Form Quantity | 1 |
| Nominal Outside Diameter | 5.625 INCHES IN |
| Pressure Angle | 2.2500 DEGREES |
| Material | ALUMINUM ALLOY BODY |
| Face Nominal Width | 0.375 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 |
|---|---|
| 9271MD-5-535A | 3/9 Design control — primary reference Aeire Corp |
NSN 3020-01-289-3343 is a Gear,worm, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
Key specifications for 3020-01-289-3343: Thread Form Direction: RIGHT-HAND; Bore Nominal Diameter: 0.500 INCHES FIRST END IN; Helix Angle: 0.025 RADIANS; Bore Style: PARTIAL FIRST END. 15 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.