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		                        | National Stock Number:
 4820-00-887-1786
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 008871786
 
 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:
 
 | 550541 | 11247 | LODESTONE CORP DIV OF FEDDERS CORP |  | B566 | 28193 | HENRY TECHNOLOGIES, INC. |  | MK1540 | 11247 | LODESTONE CORP DIV OF FEDDERS CORP |  | PW1955ITEM34SH1 | 11247 | LODESTONE CORP DIV OF FEDDERS CORP |  | B566-385 | 28193 | HENRY TECHNOLOGIES, INC. |  | B566S-385 | 28193 | HENRY TECHNOLOGIES, INC. | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | STRAIGHT THRU |  | VALVE OPERATION METHOD | AUTOMATIC |  | MAXIMUM OPERATING PRESSURE | 385.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | SPECIAL FEATURES | 1-11 1/2 NPT THREAD 1.125 IN. LG | 
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