The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-440-2909, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Richards Industries Valve Group Jordan Valve Div. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-440-2909 |
| Primary Part Number | MK50-1/2IN SER194813C |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Richards Industries Valve Group Jordan Valve Div |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Valve Stem Design | SINGLE SEAT |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 7.250 INCHES NOMINAL IN |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Style Designator | RAISED |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 20.0 TO 45.0 CAMERA MOUNT |
| Manual Control Method | SCREW |
| First End Connection Type | RAISED FACE FLANGE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Material | STEEL CORROSION RESISTING BODY |
| 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 |
| Part Number | Manufacturer |
|---|---|
| MK50-1/2IN SER194813C PRIMARY | Richards Industries Valve Group Jordan Valve Div (USA) |
| MK50-1/2IN SER194813C | Colesco Inc Div Colesco (USA) |
NSN 4820-01-440-2909 is a Valve,regulating,fluid Pressure, manufactured by Richards Industries Valve Group Jordan Valve Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-440-2909 has 2 manufacturer part numbers on file: MK50-1/2IN SER194813C (Richards Industries Valve Group Jordan Valve Div), MK50-1/2IN SER194813C (Colesco Inc Div Colesco).
Key specifications for MK50-1/2IN SER194813C: Flow Control Device: DISK; Valve Stem Design: SINGLE SEAT; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 14 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.