The Sprocket Wheel, cataloged under National Stock Number 3020-00-855-5638, 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 Terex Usa, Llc Dba Terex Equipment Services. Government technical data includes 22 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 | 3020-00-855-5638 |
| Primary Part Number | 4431-140-02 |
| Item Name | Sprocket Wheel |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Terex Usa, Llc Dba Terex Equipment Services |
| Status | ACTIVE |
| Hub Outside Diameter | 4.750 INCHES NOMINAL AA END IN |
| Hub Outside Diameter | 4.750 INCHES NOMINAL BB END IN |
| Securing Method | SETSCREW |
| Bore Length | 4.438 INCHES NOMINAL IN |
| Design Form | PLAIN |
| Tooth Pitch | 4.500 INCHES NOMINAL IN |
| Outside Diameter | 12.000 INCHES NOMINAL IN |
| Style Designator | PLAIN |
| Pitch Diameter | 10.000 INCHES NOMINAL IN |
| Bore Type | STRAIGHT |
| Teeth Row Quantity | 1 |
| Teeth Quantity Per Row | 8 |
| Protruding Hub Characteristic | PLAIN |
| Hardness Rating Test Method | NOT RATED |
| Distance From Hub End to Flange End | 1.750 INCHES NOMINAL BB END IN |
| Distance From Hub End to Flange End | 1.750 INCHES NOMINAL AA END IN |
| Surface Treatment | PAINT |
| Bore Diameter | 2.938 INCHES NOMINAL IN |
| Material | STEEL |
| Face Width | 1.125 INCHES NOMINAL IN |
| Furnished Items and Quantity | TWO SETSCREWS |
| Securing Location | AA END |
| 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 |
|---|---|
| 4431-140-02 PRIMARY | Terex Usa, Llc Dba Terex Equipment Services (USA) |
NSN 3020-00-855-5638 is a Sprocket Wheel, manufactured by Terex Usa, Llc Dba Terex Equipment Services, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-00-855-5638 has 1 manufacturer part number on file: 4431-140-02 (Terex Usa, Llc Dba Terex Equipment Services).
Key specifications for 4431-140-02: Hub Outside Diameter: 4.750 INCHES NOMINAL AA END IN; Hub Outside Diameter: 4.750 INCHES NOMINAL BB END IN; Securing Method: SETSCREW; Bore Length: 4.438 INCHES NOMINAL IN. 22 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.