NSN 4820-00-068-8991

Part Details | SAFETY RELIEF VALVE

4820-00-068-8991 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: MC1665, 20980, 128SCH1071, 128SCH107-1, 4820-00-068-8991, 00-068-8991, 4820000688991, 000688991

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
48JAN 01, 196300-068-899105488 ( VALVE, SAFETY RELIEF )
REFERENCE DRAWINGS & PICTURES

STRAIGHT THRU

Cross Reference | NSN 4820-00-068-8991
Part Number Cage Code Manufacturer
MC166576050EATON AEROSPACE LLCM C AEROSPACE DIV
2098099643EATON CORPORATIONDBA EATON AEROSPACE
128SCH107-126512NORTHROP GRUMMAN SYSTEMS CORPORATIONDIV MISSION SYSTEMS
Technical Data | NSN 4820-00-068-8991
Characteristic Specifications
SURFACE TREATMENT ANODIZE
STYLE DESIGNATOR STRAIGHT THRU
FLOW CONTROL DEVICE POPPET
VALVE DISCHARGE FLOW RATE4.0 CUBIC FEET PER MINUTE
VALVE OPERATION METHOD AUTOMATIC
BONNET TYPE PACKING RETAINING
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE49.0 TO 51.0 POUNDS PER SQUARE INCH
FEATURES PROVIDED PRESSURE TIGHT OUTLET SIDE