The Gear,spur, cataloged under National Stock Number 3020-01-301-3020, 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 Tulsa Winch, Inc.. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-301-3020 |
| Primary Part Number | 301-10012-1 |
| Item Name | Gear,spur |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Tulsa Winch, Inc. |
| Status | ACTIVE |
| Bore Nominal Diameter | 1.875 INCHES BOTH ENDS IN |
| Teeth Quantity | 100 |
| Body Style | SPOKED |
| Bore Style | STRAIGHT SPLINE BOTH ENDS |
| Hardness Rating | 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Style Designator | HUBLESS |
| Pitch Diameter | 12.5000 INCHES NOMINAL IN |
| Spline Quantity | 13 BOTH ENDS |
| Nominal Outside Diameter | 12.690 INCHES IN |
| Pressure Angle | 20.0000 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 |
|---|---|
| 301-10012-1 PRIMARY | Tulsa Winch, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 71056012 | D/9 Drawing number reference only Iowa Mold Tooling Co Inc |
| 301-10012-1 | 3/9 Design control — primary reference Gear Products Inc |
NSN 3020-01-301-3020 is a Gear,spur, manufactured by Tulsa Winch, Inc., classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-301-3020 has 1 manufacturer part number on file: 301-10012-1 (Tulsa Winch, Inc.).
Key specifications for 301-10012-1: Bore Nominal Diameter: 1.875 INCHES BOTH ENDS IN; Teeth Quantity: 100; Body Style: SPOKED; Bore Style: STRAIGHT SPLINE 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.