The Gear,worm Wheel, cataloged under National Stock Number 3020-00-494-8401, 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 L3harris Technologies, Inc Div Space & Airborne Systems. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-494-8401 |
| Primary Part Number | 172443-1 |
| Item Name | Gear,worm Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | L3harris Technologies, Inc Div Space & Airborne Systems |
| Status | ACTIVE |
| Helix Angle | 14.0333 DEGREES |
| Hub Nominal Diameter | 0.375 INCHES FIRST END IN |
| Teeth Quantity | 30 |
| Body Style | PLAIN, SOLID |
| Tooth Direction | RIGHT |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 0.220 INCHES FIRST END IN |
| Nominal Overall Length | 0.400 INCHES IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 0.6240 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM IN |
| Nominal Outside Diameter | 0.6870 INCHES IN |
| Pressure Angle | 25.0000 DEGREES |
| Mating Thread Lead Quantity | 4 |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.180 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 |
|---|---|
| 172443-1 PRIMARY | L3harris Technologies, Inc Div Space & Airborne Systems (USA) |
NSN 3020-00-494-8401 is a Gear,worm Wheel, manufactured by L3harris Technologies, Inc Div Space & Airborne Systems, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-494-8401 has 1 manufacturer part number on file: 172443-1 (L3harris Technologies, Inc Div Space & Airborne Systems).
Key specifications for 172443-1: Helix Angle: 14.0333 DEGREES; Hub Nominal Diameter: 0.375 INCHES FIRST END IN; Teeth Quantity: 30; Body Style: PLAIN, SOLID. 16 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.