The Gear,spur, cataloged under National Stock Number 3020-01-063-7890, 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 Arrow Gear Llc. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-063-7890 |
| Primary Part Number | 206-040-146-101 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Arrow Gear Llc |
| Status | ACTIVE |
| Bore Nominal Diameter | 2.697 INCHES BOTH ENDS IN |
| Teeth Quantity | 35 |
| Body Style | PLAIN, SOLID |
| Bore Style | PLAIN BOTH ENDS |
| Style Designator | HUBLESS |
| Pitch Diameter | 3.9516 INCHES NOMINAL IN |
| Tooth Form | SPECIAL |
| Features Provided | CASEHARDENED |
| Nominal Outside Diameter | 4.133 INCHES IN |
| Pressure Angle | 24.5832 DEGREES |
| Material | STEEL CORROSION RESISTING OVERALL |
| Face Nominal Width | 1.251 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 |
|---|---|
| 206-040-146-101 | Arrow Gear Llc (USA) |
| Reference | Meaning |
|---|---|
| 206-040-146 | D/9 Drawing number reference only U.S. Government activity |
| 206-040-146-1 | 5/9 Secondary reference U.S. Government activity |
| 206-040-146-101 | 5/9 Secondary reference Speco Corp |
| 206-040-146-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3020-01-063-7890 is a Gear,spur, manufactured by Arrow Gear Llc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-063-7890 has 1 manufacturer part number on file: 206-040-146-101 (Arrow Gear Llc).
Key specifications for 206-040-146-101: Bore Nominal Diameter: 2.697 INCHES BOTH ENDS IN; Teeth Quantity: 35; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS. 12 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.