The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-090-9171, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-090-9171 |
| Primary Part Number | RVN5300-200 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Metrex Valve Corp. Dba Metrex Valve Corp |
| Status | ACTIVE |
| First End Bolt Hole Quantity | 8 |
| Flow Control Device | STEM AND INTEGRAL DISK |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | THREADED |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 8.688 INCHES NOMINAL IN |
| Regulation Type | 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC |
| First End Flange Thickness | 1.000 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 6.500 INCHES NOMINAL IN |
| First End Style Designator | RAISED |
| Temp Rating | 500.0 FAHRENHEIT NOMINAL DEGF |
| First End Bolt Hole Diameter | 0.750 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 5.000 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE STEM |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 25.0 TO 75.0 CAMERA MOUNT |
| Manual Control Method | SCREW |
| Valve Loading Method | SPRING |
| 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 SEAT |
| Material | STEEL COMP 630 FLOW CONTROL DEVICE |
| Material | STEEL COMP 630 STEM |
| Media for Which Designed | STEAM |
| 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 |
| Part Number | Manufacturer |
|---|---|
| RVN5300-200 PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| RVN 5300-200 | 3/9 Design control — primary reference Star Textile and Research Inc |
| 516-5952338TR | C/1 Advisory reference — outside the item-of-supply concept Naval Inventory Control Point Mechanicsburg |
NSN 4820-01-090-9171 is a Valve,regulating,fluid Pressure, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-090-9171 has 1 manufacturer part number on file: RVN5300-200 (Metrex Valve Corp. Dba Metrex Valve Corp).
4 possible matches (shared part number, not a government interchangeability claim): 4820-01-433-0271, 4820-01-470-4764, 4820-01-470-4766. Verify interchangeability with system specifications before substitution.
Key specifications for RVN5300-200: First End Bolt Hole Quantity: 8; Flow Control Device: STEM AND INTEGRAL DISK; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: THREADED. 29 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.