The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-424-6255, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Sun Hydraulics Corporation. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-424-6255 |
| Primary Part Number | LRFA-XDN |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Face to Face Distance | 2.760 INCHES MAXIMUM IN |
| Supplementary Features | NORMALLY CLOSED MODULATING (PRESSURE) ELEMENT - CARTRIDGE OPTION |
| 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 |
|---|---|
| LRFA-XDN PRIMARY | Sun Hydraulics Corporation (USA) |
| Reference | Meaning |
|---|---|
| LRFA-XDN | 5/9 Secondary reference Koppen Et Lethem |
| W006700132 | 5/9 Secondary reference Wartsila France SAS - Anciennement Wartsila Lips Defence |
NSN 4820-01-424-6255 is a Valve,regulating,fluid Pressure, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-424-6255 has 1 manufacturer part number on file: LRFA-XDN (Sun Hydraulics Corporation).
Key specifications for LRFA-XDN: Face to Face Distance: 2.760 INCHES MAXIMUM IN; Supplementary Features: NORMALLY CLOSED MODULATING (PRESSURE) ELEMENT - CARTRIDGE OPTION; Special Features: MAX INPUT FLOW, 30 GPM; MAX SYSTEM PRESSURE 3000 PSI; Part Name Assigned by Controlling Agency: CIRCUIT SAVER. 2 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.