3020-00-157-2155 GEAR,SPUR Index 4730-00-157-2157 REDUCER,PIPE

National Stock Number:
4820-00-157-2156

Federal Supply Class:
4820

National Item Identification Number:
001572156

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:
510793-1-046-180020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2


Techincal Specification:
CONNECTION TYPETHREADED INTERNAL BOSS 1ST END
CONNECTION STYLEGASKET SEAL (BOSS) 1ST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
MATERIALSTEEL CORROSION RESISTING BODY
MATERIALSTEEL CORROSION RESISTING FLOW CONTROL DEVICE
MATERIALSTEEL CORROSION RESISTING SEAT
MAXIMUM OPERATING PRESSURE4000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP275.0 FAHRENHEIT SINGLE RESPONSE
MOUNTING POSITIONHORIZONTAL OR VERTICAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 1ST END
NOMINAL THREAD SIZE0.438 INCHES 1ST END
SEAT ANGLE37.0 DEGREES 1ST END
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3B 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD QUANTITY PER INCH20 1ST END
THREAD SERIES DESIGNATORUNF 1ST END
VALVE OPERATION METHODAUTOMATIC


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