The Gear,spur, cataloged under National Stock Number 3020-00-710-4472, 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 L3 Aviation Products, Inc. Dba L3 Technologies. Government technical data includes 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3020-00-710-4472 |
| Primary Part Number | 820431 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | L3 Aviation Products, Inc. Dba L3 Technologies |
| Status | ACTIVE |
| Bore Nominal Diameter | 0.241 INCHES BOTH ENDS IN |
| Teeth Quantity | 135 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Nominal Distance Between Body Face and Protruding Hub End | 1.1840 INCHES FIRST END IN |
| First Step Nominal Length | 0.1840 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 2.8125 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| First Step Nominal Diameter | 1.125 INCHES FIRST END IN |
| Hub Style Designator | 1 STEP FIRST END |
| End Nominal Length | 1.0000 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.8600 INCHES IN |
| End Nominal Diameter | 0.6000 INCHES FIRST END IN |
| Pressure Angle | 14.5000 DEGREES |
| Material | COPPER ALLOY HUB |
| Material | ALUMINUM ALLOY TEETH |
| Face Nominal Width | 0.188 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 |
|---|---|
| 820431 PRIMARY | L3 Aviation Products, Inc. Dba L3 Technologies (USA) |
| Reference | Meaning |
|---|---|
| 820431 | 5/9 Secondary reference Profile Gear Corp |
NSN 3020-00-710-4472 is a Gear,spur, manufactured by L3 Aviation Products, Inc. Dba L3 Technologies, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-710-4472 has 1 manufacturer part number on file: 820431 (L3 Aviation Products, Inc. Dba L3 Technologies).
1 possible match (shared part number, not a government interchangeability claim): 7310-01-219-1272. Verify interchangeability with system specifications before substitution.
Key specifications for 820431: Bore Nominal Diameter: 0.241 INCHES BOTH ENDS IN; Teeth Quantity: 135; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 18 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.