The Valve,safety Relief, cataloged under National Stock Number 4820-01-433-2592, 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 5 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-433-2592 |
| Primary Part Number | RDHA LCN ZDE |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Operating Pressure | 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Disk Loading Method | SPRING |
| Material | RUBBER PACKING |
| Material | ALUMINUM BODY |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| AMD-1139 ITEM 18 | Appleton Marine Inc (USA) |
| RDHA LCN ZDE PRIMARY | Sun Hydraulics Corporation (USA) |
| YMD-7067 | Appleton Marine Inc (USA) |
NSN 4820-01-433-2592 is a Valve,safety Relief, manufactured by Sun Hydraulics Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-433-2592 has 3 manufacturer part numbers on file: AMD-1139 ITEM 18 (Appleton Marine Inc), RDHA LCN ZDE (Sun Hydraulics Corporation), YMD-7067 (Appleton Marine Inc).
Key specifications for RDHA LCN ZDE: Operating Pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Disk Loading Method: SPRING; Special Features: SANDWICH MOUNT; STANDARD SEALED SCREW ADJUSTMENT; End Item Identification: ARLEIGH BURKE CLASS DDG. 5 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.