The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-288-8371, 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 27 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-288-8371 |
| Primary Part Number | DA866P12-200NF |
| 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 | 6 |
| Flow Control Device | DISK, FLAT |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | THREADED |
| Second End Relationship with First End | IDENTICAL |
| Remote Actuation Method | BELLOWS |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 6.375 INCHES NOMINAL IN |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Flange Thickness | 0.500 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 5.562 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| First End Bolt Hole Diameter | 0.562 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 4.438 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 70.0 TO 170.0 CAMERA MOUNT |
| Valve Loading Method | SPRING |
| First End Connection Type | PLAIN FACE FLANGE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| First End Nominal Pipe Size Accommodated | 2.000 INCHES IN |
| Material | NICKEL ALLOY STEM |
| Material | NICKEL ALLOY AND COPPER ALLOY SEAT |
| Material | RUBBER SYNTHETIC FLOW CONTROL DEVICE |
| Media for Which Designed | WATER, SALT |
| Maximum Inlet Pressure Rating | ERR-060 |
| 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 |
|---|---|
| DA866P12-200NF PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
| Reference | Meaning |
|---|---|
| V46CS-3 | 5/2 Secondary reference U.S. Government activity |
| V46CS | 5/2 Secondary reference U.S. Government activity |
| MILR16743 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-288-8371 is a Valve,regulating,fluid Pressure, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-288-8371 has 1 manufacturer part number on file: DA866P12-200NF (Metrex Valve Corp. Dba Metrex Valve Corp).
5 possible matches (shared part number, not a government interchangeability claim): 4130-00-391-9457, 4130-00-555-1499, 4820-00-752-9809. Verify interchangeability with system specifications before substitution.
Key specifications for DA866P12-200NF: First End Bolt Hole Quantity: 6; Flow Control Device: DISK, FLAT; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: THREADED. 27 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.