The Valve,check, cataloged under National Stock Number 4820-01-359-9853, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Asc International, Inc. Dba Asc International Inc Div Asc International. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Valve,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Asc International, Inc. Dba Asc International Inc Div Asc International (CAGE 06329) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-359-9853 |
| Primary Part Number | 593-8D1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Asc International, Inc. Dba Asc International Inc Div Asc International |
| 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 |
|---|---|
| 593-8D1 PRIMARY | Asc International, Inc. Dba Asc International Inc Div Asc International (USA) |
NSN 4820-01-359-9853 is a Valve,check, manufactured by Asc International, Inc. Dba Asc International Inc Div Asc International, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-359-9853 has 1 manufacturer part number on file: 593-8D1 (Asc International, Inc. Dba Asc International Inc Div Asc International).
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.