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:
STYLE DESIGNATORSTRAIGHT THRU
VALVE OPERATION METHODAUTOMATIC
MATERIALALUMINUM ALLOY 2024 BODY
ALUMINUM ALLOY 2024 AND
SILICON FLOW CONTROL DEVICE
STEEL COMP 303 PACKING
ALUMINUM ALLOY 2024 SEAT
ALUMINUM ALLOY 2024 STEM
SURFACE TREATMENTANODIZE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 1 MIL SPEC SINGLE TREATMENT RESPONSE
FLOW CONTROL DEVICEPOPPET
MEDIA FOR WHICH DESIGNEDAIR 1ST RESPONSE
OXYGEN, GASEOUS 2ND RESPONSE
OIL, CHLORINATED TRANSFORMER 3RD RESPONSE
MAXIMUM OPERATING PRESSURE200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP450.0 DEG FAHRENHEIT SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL PIPE 1ST END
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) 1ST END
THREAD SERIES DESIGNATORNPT 1ST END
NOMINAL THREAD SIZE0.125 INCHES 1ST END
THREAD DIRECTIONRIGHT-HAND 1ST END
DISK LOADING METHODSPRING
OPENING PRESSURE SETTING30.0 POUNDS PER SQUARE INCH


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