The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-288-6637, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-288-6637 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 4 |
| Flow Control Device | DISK, FLAT, TOP AND BOTTOM GUIDED |
| Valve Stem Design | SINGLE SEAT |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 9.500 INCHES NOMINAL IN |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Flange Thickness | 0.875 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 6.125 INCHES NOMINAL IN |
| First End Style Designator | RAISED |
| Temp Rating | 775.0 FAHRENHEIT MAXIMUM DEGF |
| First End Bolt Hole Diameter | 0.813 INCHES NOMINAL IN |
| First End Raised Face Diameter | 2.875 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 4.500 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 40.0 TO 400.0 CAMERA MOUNT |
| Manual Control Method | WHEEL |
| Valve Loading Method | SPRING |
| Nondefinitive Spec/std Data | C CLASS AND D COMPOSITION |
| First End Connection Type | RAISED FACE FLANGE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| First End Raised Face Height | 0.250 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | COBALT ALLOY SEAT |
| Media for Which Designed | STEAM |
| Maximum Inlet Pressure Rating | ERR-060 |
| Furnished Items | INTERNAL PILOT VALVE |
| Filter | NOT 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 |
|---|---|
| MIL-V-17848 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-288-6637 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-288-6637: First End Bolt Hole Quantity: 4; Flow Control Device: DISK, FLAT, TOP AND BOTTOM GUIDED; Valve Stem Design: SINGLE SEAT; Second End Relationship with First End: IDENTICAL. 28 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.