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		                        | National Stock Number:
 4820-01-567-6951
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 015676951
 
 Description:
 VALVE,RELIEF,PRESSURE AND TEMPER
 
 Detail:
 A VALVE DESIGNED TO RELEASE UNDER EXCESSIVE PRESSURE AND/OR EXCESSIVE TEMPERATURE BY OPENING AT A PREDETERMINED PRESSURE AND/OR TEMPERATURE. THERMOSTATICALLY OPERATED VALVES CLOSE WHEN THE PRESSURE IS RELIEVED OR THE TEMPERATURE IS REDUCED. FUSIBLE PLUG VALVES REQUIRE REPLACEMENT OF THE PLUG. SEE ALSO VALVE, SAFETY RELIEF AND VALVE, REGULATING. TEMPERATURE.
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 Manufacturer Information:
 
 | 154-319-13 | 0LHE3 | ENGINEERED ENVIRONMENTS INC DBA E E I |  | 154-319-13 | 5RQL2 | DRS ENVIRONMENTAL SYSTEMS INC |  | 154-319-13 | 92878 | HDT EXPEDITIONARY SYSTEMS INC | 
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 Techincal Specification:
 
 | PART NAME ASSIGNED BY CONTROLLING AGENCY | FILL PORT,RELIEF VALVE | 
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