The Valve,check, cataloged under National Stock Number 4820-01-034-1309, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Greenfield World Trade Inc Div Greenfield World Trade Inc D/b/a Legion Industries. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Greenfield World Trade Inc Div Greenfield World Trade Inc D/b/a Legion Industries (CAGE 35550) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-034-1309 |
| Primary Part Number | 450480 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Greenfield World Trade Inc Div Greenfield World Trade Inc D/b/a Legion Industries |
| Status | ACTIVE |
| 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 |
|---|---|
| 450480 PRIMARY | Greenfield World Trade Inc Div Greenfield World Trade Inc D/b/a Legion Industries (USA) |
NSN 4820-01-034-1309 is a Valve,check, manufactured by Greenfield World Trade Inc Div Greenfield World Trade Inc D/b/a Legion Industries, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-034-1309 has 1 manufacturer part number on file: 450480 (Greenfield World Trade Inc Div Greenfield World Trade Inc D/b/a Legion Industries).
1 possible match (shared part number, not a government interchangeability claim): 5950-01-713-6410. Verify interchangeability with system specifications before substitution.
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.