The Gear,spur, cataloged under National Stock Number 3020-00-684-2224, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-00-684-2224 |
| Primary Part Number | 820748 |
| 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 | 0.250 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 0.440 INCHES FIRST END IN |
| Teeth Quantity | 74 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Mounting Hole Type and Quantity | 2 THREADED TRANSVERSELY THROUGH HUB FIRST END |
| Nominal Distance Between Body Face and Protruding Hub End | 0.283 INCHES FIRST END IN |
| Style Designator | PROTRUDING HUB |
| Pitch Diameter | 1.5417 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN FIRST END |
| Mounting Hole Nominal Thread Size | 0.125 INCHES TRANSVERSELY THROUGH HUB FIRST END IN |
| Nominal Outside Diameter | 1.583 INCHES IN |
| Pressure Angle | 20.0000 DEGREES |
| Material | ALUMINUM ALLOY OVERALL |
| Mounting Hole Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) TRANSVERSELY THROUGH HUB FIRST END |
| Attachment Method | MOUNTING HOLE |
| Face Nominal Width | 0.100 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 |
|---|---|
| 820748 PRIMARY | L3 Aviation Products, Inc. Dba L3 Technologies (USA) |
| Reference | Meaning |
|---|---|
| 20748 | 5/9 Secondary reference Profile Gear Corp |
NSN 3020-00-684-2224 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 3020-00-684-2224 has 1 manufacturer part number on file: 820748 (L3 Aviation Products, Inc. Dba L3 Technologies).
2 possible matches (shared part number, not a government interchangeability claim): 1560-00-805-9244, 5365-01-435-1175. Verify interchangeability with system specifications before substitution.
Key specifications for 820748: Bore Nominal Diameter: 0.250 INCHES BOTH ENDS IN; Hub Nominal Diameter: 0.440 INCHES FIRST END IN; Teeth Quantity: 74; Body Style: PLAIN, SOLID. 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.