1660-01-420-3990 HARDSHELL,OXYGEN MASK,AIRCRAFT Index 4820-01-420-3992 VALVE,PRESSURE EQUALIZING,GASEOU

National Stock Number:
4820-01-420-3991

Federal Supply Class:
4820

National Item Identification Number:
014203991

Description:
VALVE,PRESSURE EQUALIZING,GASEOU

Detail:
A VALVE CONSISTING OF A SINGLE DEADWEIGHT LOADED DISK, OR TWO DEADWEIGHT LOADED DISKS EACH WITH A SEPERATE SEAT. IT IS SPECIFICALLY DESIGNED FOR THE RELIEF OF SMALL PRESSURE AND VACUUM CONDITIONS WITHIN A TANK OR OTHER CONTAINER TO OR FROM THE ATMOSPHERE. THE CENTER OF A SINGLE DEADWEIGHT LOADED DISK MAY CONTAIN A SPRING LOADED DISK FORMING AN ADDITIONAL SEAT OR APERTURE. IT MAY BE SPRING LOADED AND/OR EQUIPPED WITH A MANUAL UNLOADER ON EITHER THE PRESSURE OR VACUUM SIDE. EXCLUDE VALVE, VACUUM BREAKING.


Manufacturer Information:
TA770-05-15-R08992AGM CONTAINER CONTROLS INC


Techincal Specification:
END CONNECTION QUANTITY1
BODY STYLESINGLE CONNECTION STRAIGHT THRU
FIRST END CONNECTION TYPETHREADED INTERNAL PIPE
FIRST END STYLE DESIGNATOREXTERNAL SEAT FOR GASKET SEAL
FIRST END NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES
FIRST END NOMINAL THREAD SIZE2.000 INCHES
FIRST END THREAD DIRECTIONRIGHT-HAND
FIRST END THREAD SERIES DESIGNATORUNS
FLOW CONTROL DEVICEDISK, FLAT
MATERIALALUMINUM BODY
VALVE RELIEF DESIGN TYPEPRESSURE AND VACUUM
VALVE VENTING DESIGN TYPEATMOSPHERIC


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