The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-598-0685, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-598-0685 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 40.0 MILLIMETERS NOMINAL MM |
| Regulation Type | MANUAL SINGLE STAGE |
| End Connection Quantity | 2 |
| Valve Loading Method | SPRING |
| Material | ZINC BODY |
| Outlet Pressure Accuracy Rating | ERR-060 |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Filter | INCLUDED |
| 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 |
|---|---|
| 218080138 | 3/9 Design control — primary reference U.S. Government activity |
| 218080138A | 3/2 Design control — primary reference U.S. Government activity |
| AW20-N02GH-CZ | 5/9 Secondary reference Smc Corporation of America |
| H651-8500-33 | 5/9 Secondary reference U.S. Government activity |
| 21808013A | 5/9 Secondary reference U.S. Government activity |
| 564-7383630-33 | 5/1 Secondary reference Naval Sea Systems Command |
NSN 4820-01-598-0685 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-598-0685: Flow Control Device: DIAPHRAGM; Body Style: STRAIGHT THRU; Face to Face Distance: 40.0 MILLIMETERS NOMINAL MM; Regulation Type: MANUAL SINGLE STAGE. 11 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.