4320-00-147-1691 DIAPHRAGM Index 4720-00-147-1693 HOSE ASSEMBLY,NONMETALLIC

National Stock Number:
4820-00-147-1692

Federal Supply Class:
4820

National Item Identification Number:
001471692

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:
1065829918876U S ARMY AVIATION AND MISSILE COMMAND
16649-1633654HOWDEN FLUID SYSTEMS
16649-1658163MEGGITT (NORTH HOLLYWOOD), INC.


Techincal Specification:
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) FIRST END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
DISK LOADING METHODSPRING
FLOW CONTROL DEVICEPOPPET
OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE
MATERIALALUMINUM ALLOY 2024 SEAT
MATERIALALUMINUM ALLOY 2024 STEM
MATERIALALUMINUM ALLOY 2024 AND SILICON FLOW CONTROL DEVICE
MATERIALALUMINUM ALLOY 2024 BODY
MATERIALSTEEL COMP 303 PACKING
MAXIMUM OPERATING TEMP450.0 FAHRENHEIT SINGLE RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MEDIA FOR WHICH DESIGNEDOIL, CHLORINATED TRANSFORMER THIRD RESPONSE
MEDIA FOR WHICH DESIGNEDOXYGEN, GASEOUS SECOND RESPONSE
NOMINAL THREAD SIZE0.125 INCHES FIRST END
OPENING PRESSURE SETTING30.0 POUNDS PER SQUARE INCH
VALVE OPERATION METHODAUTOMATIC
STYLE DESIGNATORSTRAIGHT THRU
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE LOCATION NOT OTHERWISE SPECIFIED
SURFACE TREATMENTANODIZE LOCATION NOT OTHERWISE SPECIFIED
THREAD DIRECTIONRIGHT-HAND FIRST END
THREAD SERIES DESIGNATORNPT FIRST END


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