3120-01-015-3437 BUSHING,SLEEVE Index 5955-01-015-3443 CRYSTAL UNIT,QUARTZ

National Stock Number:
4820-01-015-3439

Federal Supply Class:
4820

National Item Identification Number:
010153439

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:
10109268A486GNIMIKKEISTOKESKUS NCB FINLAND
35C-1A91511AUTO-VALVE, INC
CV99-991816CIRCOR AEROSPACE, INC.
ST7M35076301THE BOEING COMPANY
ST7M350-1A76301THE BOEING COMPANY
VEAAL00001-3591511AUTO-VALVE, INC


Techincal Specification:
END CONNECTION QUANTITY1
BODY MATERIALALUMINUM ALLOY
BODY STYLESINGLE CONNECTION, STRAIGHT FLOW
DISK LOADING METHODSPRING
FIRST END CONNECTION TYPETHREADED EXTERNAL BOSS
FIRST END THREAD DIRECTIONRIGHT-HAND
FIRST END THREAD CLASS2A
FIRST END STYLE DESIGNATORPLAIN
FLOW CONTROL DEVICE MATERIALALUMINUM ALLOY
FLOW CONTROL DEVICEPOPPET
OUTSIDE SURFACE TREATMENTANODIZED
MEDIA FOR WHICH DESIGNEDAIR
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
VALVE RELIEF DESIGN TYPEPRESSURE
VALVE VENTING DESIGN TYPEATMOSPHERIC


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