4820-01-031-3239 VALVE,CHECK Index 4820-01-031-3241 VALVE,SAFETY RELIEF

National Stock Number:
4820-01-031-3240

Federal Supply Class:
4820

National Item Identification Number:
010313240

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:
47-00581982HYDRO-AIRE AEROSPACE CORP
A51H9030-326512NORTHROP GRUMMAN SYSTEMS CORPORATION
A51H9030-361174NORTHROP GRUMMAN SYSTEMS CORPORATION


Techincal Specification:
CONNECTION STYLEFLARELESS FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END
NOMINAL THREAD SIZE0.438 INCHES FIRST END
SEAT ANGLE12.0 DEGREES FIRST END
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
THREAD CLASS3A FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END


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