3120-01-055-7842 BEARING,WASHER,THRUST Index 4820-01-055-7845 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-055-7844

Federal Supply Class:
4820

National Item Identification Number:
010557844

Description:
VALVE,CHECK

Detail:
A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.


Manufacturer Information:
760261893322GE AVIATION SYSTEMS LLC DBA GE AVIATION
869A-4BB-291816CIRCOR AEROSPACE, INC.
A1Q7291816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION STYLEFLARE (TUBE) ALL ENDS
CONNECTION TYPETHREADED INTERNAL TUBE ALL ENDS
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALALUMINUM OVERALL
MAXIMUM OPERATING TEMP180.0 FAHRENHEIT SECOND RESPONSE
MAXIMUM OPERATING TEMP-65.0 FAHRENHEIT FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDALCOHOL, ETHYL FIFTH RESPONSE
MEDIA FOR WHICH DESIGNEDCARBON DIOXIDE THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDETHYLENE GLYCOL FOURTH RESPONSE
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SECOND RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS
OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3B ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
THREAD SERIES DESIGNATORUNF ALL ENDS


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