The Valve,check, cataloged under National Stock Number 4820-01-669-5784, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Supreme Integrated Technology, Inc.. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711); Supreme Integrated Technology, Inc. (CAGE 5BN34) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-669-5784 |
| Primary Part Number | S10694-149-1 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Supreme Integrated Technology, 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 |
| Part Number | Manufacturer |
|---|---|
| 556-8592159 FN 23 | Naval Sea Systems Command (USA) |
| S10694-149-1 PRIMARY | Supreme Integrated Technology, Inc. (USA) |
| 8592149-001 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 556-8592149 | D/9 Drawing number reference only Naval Sea Systems Command |
| 556-8592223 FN 1 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4820-01-669-5784 is a Valve,check, manufactured by Supreme Integrated Technology, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-669-5784 has 3 manufacturer part numbers on file: 556-8592159 FN 23 (Naval Sea Systems Command), S10694-149-1 (Supreme Integrated Technology, Inc.), 8592149-001 (Naval Sea Systems Command).
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.