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		                        | National Stock Number:
 4820-00-475-5997
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 004755997
 
 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.
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 Manufacturer Information:
 
 | D562A4D35 | 91816 | CIRCOR AEROSPACE, INC. | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | STRAIGHT THRU |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | ALUMINUM OVERALL |  | FLOW CONTROL DEVICE | POPPET |  | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |  |  | STEAM 2ND RESPONSE |  | MAXIMUM OPERATING PRESSURE | 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MAXIMUM OPERATING TEMP | 300.0 DEG FAHRENHEIT SINGLE RESPONSE |  | CONNECTION TYPE | THREADED EXTERNAL BOSS 1ST END |  | CONNECTION STYLE | EXTERNAL SEAT FOR GASKET SEAL (BOSS) 1ST END |  | THREAD SERIES DESIGNATOR | UNJF 1ST END |  | NOMINAL THREAD SIZE | 0.438 INCHES 1ST END |  | THREAD CLASS | 3A 1ST END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  | DISK LOADING METHOD | SPRING |  | OPENING PRESSURE SETTING | 35.0 POUNDS PER SQUARE INCH |  | SPECIAL FEATURES | FURNISHED W/DEFLECTOR CAP | 
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