The Valve,check, cataloged under National Stock Number 4820-01-164-9776, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-164-9776 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Furnished Items and Quantity | 2 TAILPIECE |
| Nominal Pipe Size Accommodated | 0.500 INCHES FIRST END IN |
| Connection Style | SOCKET (PIPE) FIRST END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Disk Loading Method | SPRING |
| Material | STEEL CORROSION RESISTING BODY |
| Valve Operation Method | AUTOMATIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MPL2240 | 5/9 Secondary reference Derbyshire Machine & Tool Co |
| H5065-ASSY-3-PL1358 | 3/9 Design control — primary reference Hydrasearch Co., Inc. Dba Use CAGE Code 32142 for Cataloging |
| MPL2240 | C/1 Advisory reference — outside the item-of-supply concept Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc |
| H5065-ASSY-3-PL1358 | C/1 Advisory reference — outside the item-of-supply concept Hydrasearch Company, Llc |
NSN 4820-01-164-9776 is a Valve,check, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-164-9776: Flow Control Device: DISK; Furnished Items and Quantity: 2 TAILPIECE; Nominal Pipe Size Accommodated: 0.500 INCHES FIRST END IN; Connection Style: SOCKET (PIPE) FIRST END. 10 specifications are documented in the U.S. Government catalog.
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.