The Valve,check, cataloged under National Stock Number 4820-01-185-8077, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Klein Products, Inc.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Klein Products, Inc. (CAGE 30568) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-185-8077 |
| Primary Part Number | 39011175 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Klein Products, Inc. |
| 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 |
NSN 4820-01-185-8077 is a Valve,check, manufactured by Klein Products, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-185-8077 has 2 manufacturer part numbers on file: K-11175 (Klein Products, Inc.), 39011175 (Klein Products, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-235-1481. 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.