The Valve,expansion, cataloged under National Stock Number 4820-01-344-2189, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Tld Ace Corp Div Tld Ace. 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,expansion |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Tld Ace Corp Div Tld Ace (CAGE 00365) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-344-2189 |
| Primary Part Number | 1001807 |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Tld Ace Corp Div Tld Ace |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 1001807 PRIMARY | Tld Ace Corp Div Tld Ace (USA) |
NSN 4820-01-344-2189 is a Valve,expansion, manufactured by Tld Ace Corp Div Tld Ace, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-344-2189 has 1 manufacturer part number on file: 1001807 (Tld Ace Corp Div Tld Ace).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-707-4720. 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.