NSN 4820-00-090-0979
Part Details | SAFETY RELIEF VALVE
4820-00-090-0979 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.
Alternate Parts: 631B41827, 631B-4-1/8-27, 631B41827, 631B4-1/8-27, 4820-00-090-0979, 00-090-0979, 4820000900979, 000900979
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
48 | NOV 29, 1972 | 00-090-0979 | 05488 ( VALVE, SAFETY RELIEF ) |
REFERENCE DRAWINGS & PICTURES
ANGLE

Cross Reference | NSN 4820-00-090-0979
Part Number | Cage Code | Manufacturer |
---|---|---|
631B-4-1/8-27 | 09990 | PARKER-HANNIFIN CORPORATIONDBA HYDRAULIC VALVE DIV |
631B4-1/8-27 | 86768 | TELEDYNE INDUSTRIES INCTELEDYNE FLUID SYSTEMS REPUBLIC |
Technical Data | NSN 4820-00-090-0979
Characteristic | Specifications |
---|---|
SURFACE TREATMENT | PASSIVATE |
STYLE DESIGNATOR | ANGLE |
FLOW CONTROL DEVICE | POPPET |
VALVE OPERATION METHOD | AUTOMATIC |
BONNET TYPE | INSIDE SCREW |
BONNET ATTACHMENT METHOD | INTEGRAL |
DISK LOADING METHOD | SPRING |
OPENING PRESSURE SETTING | 200.0 POUNDS PER SQUARE INCH |
ADJUSTABLE PRESSURE RANGE | 115.0 TO 250.0 POUNDS PER SQUARE INCH |
FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
SPECIAL FEATURES | THE END CONNECTION IDENTIFIED AS THE SECOND END IS THE VALVE INLET |
END ITEM IDENTIFICATION | GRUMMAN AIRCRAFT MODEL A10 |