4730-00-494-8098 CAP,LUBRICATION FITTING,PROTECTI Index 4720-00-494-8107 HOSE,AIR DUCT

National Stock Number:
4820-00-494-8106

Federal Supply Class:
4820

National Item Identification Number:
004948106

Description:
VALVE,SAFETY RELIEF

Detail:
A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.


Manufacturer Information:
513991-180020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2


Techincal Specification:
ADJUSTABLE PRESSURE RANGE+800.0 TO 1500.0 POUNDS PER SQUARE INCH
BONNET ATTACHMENT METHODINTEGRAL
BONNET TYPEINSIDE SPRING
CONNECTION STYLEGASKET SEAL(BOSS) FIRST END
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
OPERATING PRESSURE1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALPLASTIC POLYURETHANE SEAT
MATERIALSTEEL COMP 303 AND STEEL COMP 416 FLOW CONTROL DEVICE
MATERIALSTEEL COMP 303 BODY
MAXIMUM OPERATING TEMP225.0 FAHRENHEIT SINGLE RESPONSE
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END
NOMINAL THREAD SIZE0.750 INCHES FIRST END
OPENING PRESSURE SETTING1000.0 POUNDS PER SQUARE INCH
RENEWABLE SEAT RING TYPEPRESSED-IN
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORANGLE
SURFACE TREATMENTPASSIVATE LOCATION NOT OTHERWISE SPECIFIED
THREAD CLASS3B FIRST END
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END
THREAD QUANTITY PER INCH16 FIRST END


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