4820-00-121-9623 VALVE,SAFETY RELIEF Index 4820-00-121-9627 VALVE,CHECK

National Stock Number:
4820-00-121-9625

Federal Supply Class:
4820

National Item Identification Number:
001219625

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:
4085700-718355THE BOEING COMPANY
4085700-752997PACIFIC AIR INDUSTRIES, LLC
4085700-788277THE BOEING COMPANY
S4085700-718355THE BOEING COMPANY
S4085700-788277THE BOEING COMPANY


Techincal Specification:
CONNECTION STYLEFLARED (TUBE) 1ST END
CONNECTION TYPETHREADED EXTERNAL TUBE 1ST END
CONNECTION TYPETHREADED INTERNAL PIPE 2ND END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 2ND END
DISK LOADING METHODSPRING
FEATURES PROVIDEDPRESSURE TIGHT OUTLET SIDE
FLOW CONTROL DEVICEDISK
MATERIALALUMINUM ALLOY BODY
MATERIALSTEEL CORROSION RESISTING SEAT
MATERIALSTEEL CORROSION RESISTING STEM
MAXIMUM OPERATING PRESSURE3750.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDFUEL/OIL, HYDROCARBON SINGLE RESPONSE
MOUNTING FACILITYTHREADED FASTENER
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES 1ST END
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES 2ND END
NOMINAL THREAD SIZE0.250 INCHES 2ND END
NOMINAL THREAD SIZE0.437 INCHES 1ST END
SEAT ANGLE37.0 DEGREES 1ST END
STYLE DESIGNATORANGLE
THREAD CLASS3A 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
THREAD DIRECTIONRIGHT-HAND 2ND END
THREAD QUANTITY PER INCH18 2ND END
THREAD QUANTITY PER INCH20 1ST END
THREAD SERIES DESIGNATORNPT 2ND END
THREAD SERIES DESIGNATORUNF 1ST END
VALVE OPERATION METHODAUTOMATIC


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