The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-503-7947, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-503-7947 |
| Primary Part Number | MK50BPRV1/2IN.-5V |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Richards Industries Valve Group Jordan Valve Div |
| Status | ACTIVE |
| Body Style | TEE |
| End Connection Quantity | 2 |
| Valve Loading Method | SPRING |
| Material | STEEL CORROSION RESISTING BODY |
| Media for Which Designed | AIR OR GAS OR OIL OR STEAM OR WATER |
| 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 |
|---|---|
| MK50BPRV1/2IN.-5V PRIMARY | Richards Industries Valve Group Jordan Valve Div (USA) |
| 1/2INMK50N-316SS-15/60PSI-5V | Richards Industries Valve Group Jordan Valve Div (USA) |
| Reference | Meaning |
|---|---|
| ASC1531268 | 5/9 Secondary reference Asc Pty Ltd |
NSN 4820-01-503-7947 is a Valve,regulating,fluid Pressure, manufactured by Richards Industries Valve Group Jordan Valve Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-503-7947 has 2 manufacturer part numbers on file: MK50BPRV1/2IN.-5V (Richards Industries Valve Group Jordan Valve Div), 1/2INMK50N-316SS-15/60PSI-5V (Richards Industries Valve Group Jordan Valve Div).
Key specifications for MK50BPRV1/2IN.-5V: Body Style: TEE; End Connection Quantity: 2; Valve Loading Method: SPRING; Special Features: STRAIGHT-THROUGH FLOW; INTERCHANGEABLE SEATS AND CVS; SELF-CLEANING SEATS. 5 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.