The Gear,worm, cataloged under National Stock Number 3020-01-421-4580, 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 Textron Aviation Inc. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-421-4580 |
| Primary Part Number | 35-810140 |
| Item Name | Gear,worm |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Textron Aviation Inc |
| Status | ACTIVE |
| Thread Form Direction | RIGHT-HAND |
| Helix Angle | 0.013 RADIANS |
| Face Type | STRAIGHT |
| Style Designator | HUBLESS |
| Pitch Diameter | 2.0000 INCHES NOMINAL IN |
| Thread Form Quantity | 1 |
| Nominal Outside Diameter | 2.0616 INCHES IN |
| Pressure Angle | 23.0000 DEGREES |
| Material | STEEL OVERALL |
| Face Nominal Width | 0.3437 INCHES IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 35-810140 PRIMARY | Textron Aviation Inc (USA) |
| Reference | Meaning |
|---|---|
| 35-810140 | 3/9 Design control — primary reference Beechcraft Corporation Dba Textron Aviation |
NSN 3020-01-421-4580 is a Gear,worm, manufactured by Textron Aviation Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-421-4580 has 1 manufacturer part number on file: 35-810140 (Textron Aviation Inc).
Key specifications for 35-810140: Thread Form Direction: RIGHT-HAND; Helix Angle: 0.013 RADIANS; Face Type: STRAIGHT; Style Designator: HUBLESS. 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.
NSN 3020-01-421-4580 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.