The Valve,expansion, cataloged under National Stock Number 4820-01-687-3258, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker Hannifin Corp Div Sporlan Division. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-687-3258 |
| Primary Part Number | EGSE1-1/2ZP |
| Item Name | Valve,expansion |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker Hannifin Corp Div Sporlan Division |
| Status | ACTIVE |
| Flow Control Device | DISK, CIRCULAR AND DISK, TOP GUIDED |
| Valve Equalizer Location | EXTERNAL |
| Second End Relationship with First End | NOT IDENTICAL |
| End Connection Quantity | 2 |
| Second End Outside Diameter Hose Accommodated | 0.500 INCHES NOMINAL IN |
| First End Outside Diameter Hose Accommodated | 0.375 INCHES NOMINAL IN |
| Valve Evaporator Temp Range Designation | LOW |
| Valve Expansion Control Type | THERMOSTATIC |
| Media for Which Designed | REFRIGERANT |
| Valve Equalizer Connection Type | THREADED MALE |
| 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 |
|---|---|
| EGSE1-1/2ZP PRIMARY | Parker Hannifin Corp Div Sporlan Division (USA) |
| Reference | Meaning |
|---|---|
| EGSE1-1/2ZP | 5/9 Secondary reference United Refrigeration, Inc. |
NSN 4820-01-687-3258 is a Valve,expansion, manufactured by Parker Hannifin Corp Div Sporlan Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-687-3258 has 1 manufacturer part number on file: EGSE1-1/2ZP (Parker Hannifin Corp Div Sporlan Division).
Key specifications for EGSE1-1/2ZP: Flow Control Device: DISK, CIRCULAR AND DISK, TOP GUIDED; Valve Equalizer Location: EXTERNAL; Second End Relationship with First End: NOT IDENTICAL; End Connection Quantity: 2. 10 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.