4920-00-482-0990 ELECTRONIC COMPONENTS ASSEMBLY Index 4920-00-482-0993 KNOB,STRAP HOLDER

National Stock Number:
4820-00-482-0991

Federal Supply Class:
4820

National Item Identification Number:
004820991

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:
C04981755LOCKHEED MARTIN CORPORATION
P36-67391816CIRCOR AEROSPACE, INC.


Techincal Specification:
CONNECTION TYPETHREADED EXTERNAL BOSS 1ST END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END
FLOW CONTROL DEVICEPOPPET
MATERIALALUMINUM ALLOY BODY
MATERIALSTEEL FLOW CONTROL DEVICE
MAXIMUM OPERATING TEMP260.0 FAHRENHEIT SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
MEDIA FOR WHICH DESIGNEDNITROGEN, GASEOUS 2ND RESPONSE
MOUNTING POSITIONVERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 1ST END
NOMINAL THREAD SIZE0.438 INCHES 1ST END
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
VALVE OPERATION METHODAUTOMATIC


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