The Valve,safety Relief, cataloged under National Stock Number 4820-01-123-3941, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-123-3941 |
| Primary Part Number | RAS600S4 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Flange Shape | RECTANGULAR WITH HOLES ALL ENDS |
| Center to Center Distance | 1.000 INCHES IN |
| Nominal Length | 2.875 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Bolt Hole Nominal Diameter | 0.282 INCHES ALL ENDS IN |
| Adjustable Pressure Range | +1000.0 TO 2000.0 POUNDS PER SQUARE INCH LBS |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Disk Loading Method | SPRING |
| Mounting Facility | THREADED FASTENER |
| Bolt Hole Quantity | 4 ALL ENDS |
| Nominal Width | 2.000 INCHES ALL ENDS IN |
| Material | STEEL BODY |
| Valve Discharge Flow Rate | 10.0 GALLONS PER MINUTE |
| Valve Operation Method | AUTOMATIC |
| Nominal Thickness | 1.250 INCHES ALL ENDS IN |
| 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 |
|---|---|
| RAS600S4 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| Reference | Meaning |
|---|---|
| RAS600 1000 TO 2000PSI | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
NSN 4820-01-123-3941 is a Valve,safety Relief, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-123-3941 has 1 manufacturer part number on file: RAS600S4 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).
Key specifications for RAS600S4: Flow Control Device: POPPET; Flange Shape: RECTANGULAR WITH HOLES ALL ENDS; Center to Center Distance: 1.000 INCHES IN; Nominal Length: 2.875 INCHES ALL ENDS IN. 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.