4820-01-021-8370 VALVE,CHECK Index 4820-01-021-8372 VALVE,CHECK

National Stock Number:
4820-01-021-8371

Federal Supply Class:
4820

National Item Identification Number:
010218371

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:
4C2856-199240CRISSAIR INC
A15HS017-277272THE BOEING COMPANY


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL TUBE 2ND END
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
CONNECTION STYLEFLARELESS 1ST END
CONNECTION STYLEFLARELESS 2ND END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALSTEEL CORROSION RESISTING OVERALL
MOUNTING POSITIONHORIZONTAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 2ND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES 1ST END
SEAT ANGLE12.0 DEGREES 1ST END
SEAT ANGLE12.0 DEGREES 2ND END
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENTPASSIVATE
THREAD CLASS3A 1ST END
THREAD CLASS3A 2ND END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD DIRECTIONRIGHT-HAND 2ND END


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