The Chain,roller, cataloged under National Stock Number 3020-01-598-6834, 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 Vt Leeboy Inc. Dba Leeboy Div Vt Leeboy. Government technical data includes 4 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 | 3020-01-598-6834 |
| Primary Part Number | 851121 |
| Item Name | Chain,roller |
| FSC / FSG | 3020 / 30 — Gears, Pulleys, Sprockets, and Transmission Chain |
| Manufacturer | Vt Leeboy Inc. Dba Leeboy Div Vt Leeboy |
| Status | ACTIVE |
| Link Style | ROLLER |
| Effective Length | 8.500 INCHES NOMINAL IN |
| First Chain Link Style | ROLLER |
| Link Plate Width | 1.250 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 |
|---|---|
| 851121 PRIMARY | Vt Leeboy Inc. Dba Leeboy Div Vt Leeboy (USA) |
NSN 3020-01-598-6834 is a Chain,roller, manufactured by Vt Leeboy Inc. Dba Leeboy Div Vt Leeboy, classified under FSC 3020, Gears, Pulleys, Sprockets, and Transmission Chain. Status: active.
NSN 3020-01-598-6834 has 1 manufacturer part number on file: 851121 (Vt Leeboy Inc. Dba Leeboy Div Vt Leeboy).
Key specifications for 851121: Link Style: ROLLER; Effective Length: 8.500 INCHES NOMINAL IN; First Chain Link Style: ROLLER; Part Name Assigned by Controlling Agency: CHAIN,ROLLER. 4 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.