NSN 4820-00-287-3139

Part Details | SAFETY RELIEF VALVE

4820-00-287-3139 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: 1990T12X13650PSI, 1990T-1/2X1-36-50PSI, 1990, 1990T121 3550PSI, 1990T-1/21 35-50PSI, 4820-00-287-3139, 00-287-3139, 4820002873139, 002873139

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196300-287-313905488 ( VALVE, SAFETY RELIEF )
REFERENCE DRAWINGS & PICTURES

ANGLE

Cross Reference | NSN 4820-00-287-3139
Part Number Cage Code Manufacturer
1990T-1/2X1-36-50PSI16497DRESSER, INC.DBA DRESSER EQUIPMENT GROUP
199016497DRESSER, INC.DBA DRESSER EQUIPMENT GROUP
1990T-1/21 35-50PSI16497DRESSER, INC.DBA DRESSER EQUIPMENT GROUP
Technical Data | NSN 4820-00-287-3139
Characteristic Specifications
STYLE DESIGNATOR ANGLE
FLOW CONTROL DEVICE DISK
VALVE DISCHARGE FLOW RATE93.0 POUNDS PER HOUR
VALVE OPERATION METHOD AUTOMATIC
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING50.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE33.0 TO 55.0 POUNDS PER SQUARE INCH
MINIMUM OPERATING TEMP401.0 DEG FAHRENHEIT
SPECIAL FEATURESW/LIFTING LEVER AND INCONEL SPRING
NONDEFINITIVE SPEC/STD DATAA-1 TYPE AND C CLASS