4720-00-885-0219 HOSE ASSEMBLY,NONMETALLIC Index 4730-00-885-0221 LOCKNUT,TUBE FITTING

National Stock Number:
4820-00-885-0220

Federal Supply Class:
4820

National Item Identification Number:
008850220

Description:
VALVE,SAFETY RELIEF

Detail:
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.


Manufacturer Information:
530A24T6691816CIRCOR AEROSPACE, INC.
532A24T6691816CIRCOR AEROSPACE, INC.
S6132-63031-178286SIKORSKY AIRCRAFT CORPORATION


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+0.5/+150.0 POUNDS PER SQUARE INCH
CONNECTION TYPETHREADED EXTERNAL BOSS ALL ENDS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
FLOW CONTROL DEVICEPOPPET
MATERIALALUMINUM ALLOY 2024 BODY
PROPRIETARY CHARACTERISTICSPACS
MAXIMUM OPERATING TEMP450.0 DEG FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID, SILICATE-ESTER BASE 2ND RESPONSE
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON 1ST RESPONSE
NOMINAL THREAD SIZE1.875 INCHES ALL ENDS
OPENING PRESSURE SETTING66.0 POUNDS PER SQUARE INCH
SEAT ANGLE90.0 DEGREES ALL ENDS
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD QUANTITY PER INCH12 ALL ENDS
THREAD SERIES DESIGNATORUN ALL ENDS


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