4820-01-021-7733 VALVE,CHECK Index 4820-01-021-7735 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-021-7734

Federal Supply Class:
4820

National Item Identification Number:
010217734

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:
4C2850-199240CRISSAIR INC
A15HS017-1077272THE BOEING COMPANY


Techincal Specification:
CONNECTION STYLEFLARELESS SECOND END
CONNECTION STYLEFLARELESS FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
OPERATING PRESSURE3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALALUMINUM ALLOY OVERALL
MOUNTING POSITIONHORIZONTAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES FIRST END
NOMINAL THREAD SIZE1.062 INCHES SECOND END
NOMINAL THREAD SIZE1.315 INCHES FIRST END
SEAT ANGLE12.0 DEGREES SECOND END
SEAT ANGLE12.0 DEGREES FIRST END
SPECIAL FEATURESTEMP RANGE 65 TO 275 F
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A FIRST END
THREAD CLASS3A SECOND END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD DIRECTIONRIGHT-HAND SECOND END
THREAD SERIES DESIGNATORUN SECOND END
THREAD SERIES DESIGNATORUNF FIRST END
THREAD QUANTITY PER INCH12 SECOND END


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