The Gear,spur, cataloged under National Stock Number 3020-01-181-8686, 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. Dba Harris Corporation. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-181-8686 |
| Primary Part Number | 146C455 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corporation |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.807 INCHES BOTH ENDS IN |
| Hub Nominal Diameter | 3.500 INCHES BOTH ENDS IN |
| Teeth Quantity | 62 |
| Body Style | WEBBED, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | FLUSH HUB |
| Material Document and Classification | AISI/SAE FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Pitch Diameter | 6.2000 INCHES NOMINAL IN |
| Tooth Form | STANDARD |
| Hub Style Designator | PLAIN BOTH ENDS |
| Nominal Outside Diameter | 6.450 INCHES IN |
| Pressure Angle | 22.5000 DEGREES |
| Material | STEEL COMP 4140 OVERALL |
| Face Nominal Width | 1.500 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 |
|---|---|
| 146C455 | L3harris Technologies, Inc. Dba Harris Corporation (USA) |
| 146C455 | Telephonics Corp (USA) |
| Reference | Meaning |
|---|---|
| 146C455 | 3/9 Design control — primary reference Itt Industries Inc Itt Aerospace Communications Div East |
| 46-6044 | D/9 Drawing number reference only U.S. Government activity |
NSN 3020-01-181-8686 is a Gear,spur, manufactured by L3harris Technologies, Inc. Dba Harris Corporation, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-181-8686 has 2 manufacturer part numbers on file: 146C455 (L3harris Technologies, Inc. Dba Harris Corporation), 146C455 (Telephonics Corp).
Key specifications for 146C455: Bore Nominal Diameter: 2.807 INCHES BOTH ENDS IN; Hub Nominal Diameter: 3.500 INCHES BOTH ENDS IN; Teeth Quantity: 62; Body Style: WEBBED, SOLID. 14 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.