The Valve,expansion, cataloged under National Stock Number 4820-00-744-1249, 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 17 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-744-1249 |
| Primary Part Number | DA869P75SEMUEM |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Metrex Valve Corp. Dba Metrex Valve Corp |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Valve Equalizer Location | INTERNAL |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | STRAIGHT THRU |
| First End Style Designator | SOCKET |
| Valve Pressure Limiting Device Range | 105.0 TO 160.0 THREADED MOUNTING SCREWS |
| Second End Nominal Pipe Size Accommodated | 0.750 INCHES IN |
| End Connection Quantity | 2 |
| Second End Thread Direction | RIGHT-HAND |
| Second End Style Designator | PLAIN |
| First End Connection Type | UNTHREADED INTERNAL TUBE |
| First End Outside Diameter Tube Accommodated | 0.875 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Valve Expansion Control Type | PRESSURE |
| Media for Which Designed | WATER, SALT |
| Valve Pressure Limiting Device | INCLUDED |
| Second End Connection Type | THREADED INTERNAL PIPE |
| 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 |
|---|---|
| DA869P75SEMUEM PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
NSN 4820-00-744-1249 is a Valve,expansion, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-744-1249 has 1 manufacturer part number on file: DA869P75SEMUEM (Metrex Valve Corp. Dba Metrex Valve Corp).
Key specifications for DA869P75SEMUEM: Flow Control Device: DIAPHRAGM; Valve Equalizer Location: INTERNAL; Second End Relationship with First End: NOT IDENTICAL; Body Style: STRAIGHT THRU. 17 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.