The Sprocket Wheel, cataloged under National Stock Number 3020-01-453-2293, 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 Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3020-01-453-2293 |
| Primary Part Number | 25B10 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc |
| Status | ACTIVE |
| Hub Outside Diameter | 0.500 INCHES NOMINAL AA END IN |
| Bore Length | 0.500 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 0.250 INCHES NOMINAL IN |
| Outside Diameter | 0.919 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 0.794 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 10 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 0.390 INCHES NOMINAL AA END IN |
| Bore Diameter | 0.250 INCHES NOMINAL IN |
| Material | STEEL |
| Face Width | 0.110 INCHES NOMINAL 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 |
|---|---|
| 25B10 PRIMARY | Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc (USA) |
NSN 3020-01-453-2293 is a Sprocket Wheel, manufactured by Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-453-2293 has 1 manufacturer part number on file: 25B10 (Martin-Fairmount Fairmount Tool and Forging Div of Martin Sprocket and Gear Inc).
Key specifications for 25B10: Hub Outside Diameter: 0.500 INCHES NOMINAL AA END IN; Bore Length: 0.500 INCHES NOMINAL IN; Design Form: PLAIN; Tooth Pitch: 0.250 INCHES NOMINAL IN. 16 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.