4820-00-851-1848 VALVE,RESTRICTOR CHECK Index 4820-00-851-1850 VALVE,RESTRICTOR CHECK

National Stock Number:
4820-00-851-1849

Federal Supply Class:
4820

National Item Identification Number:
008511849

Description:
VALVE,RESTRICTOR CHECK

Detail:
A VALVE HAVING AN ORIFICE IN THE POPPET, DISK, OR THE LIKE, TO PERMIT RESTRICTED FLUID FLOW WHEN THE VALVE IS SEATED. IT DOES NOT HAVE A STEM OR PROVISIONS FOR PRESSURE ADJUSTMENTS, AND IS SIMILAR TO A VALVE, CHECK WITH THE EXCEPTION OF THE ORIFICE WHICH PERMITS FLUID FLOW IN MORE THAN ONE DIRECTION.


Manufacturer Information:
32-72009-4176301THE BOEING COMPANY
8R7633-4126044SAF INDUSTRIES LLC


Techincal Specification:
APERTURE DIAMETER0.021 INCHES NOMINAL
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALRUBBER SYNTHETIC PACKING
MATERIALSTEEL BODY
MATERIALSTEEL FLOW CONTROL DEVICE
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
MOUNTING POSITIONHORIZONTAL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.312 INCHES FIRST END
NOMINAL THREAD SIZE0.375 INCHES FIRST END
SPECIAL FEATURES2.110 IN. LG OVER-ALL,0.625 IN. ACROSS FLATS
SEAT ANGLE37.0 DEGREES FIRST END
STYLE DESIGNATORSTRAIGHT THRU
TEST DATA DOCUMENT76301-32-72009 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
THREAD CLASS3A FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD QUANTITY PER INCH24 FIRST END
THREAD SERIES DESIGNATORUNF FIRST END


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