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		                        | National Stock Number:
 4820-01-026-4810
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 010264810
 
 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:
 
 | 103-1-2IN | 75336 | F.C.KINGSTON CO. DBA STORM MANUFACTURING |  | 103-1/2IN90PSI | 75336 | F.C.KINGSTON CO. DBA STORM MANUFACTURING | 
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 Techincal Specification:
 
 | DISK LOADING METHOD | SPRING |  | CONNECTION TYPE | THREADED EXTERNAL PIPE 2ND END |  | CONNECTION TYPE | THREADED INTERNAL PIPE 1ST END |  | CONNECTION STYLE | PLAIN (PIPE) 2ND END |  | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) 1ST END |  | FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |  | FLOW CONTROL DEVICE | BALL |  | MATERIAL | COPPER ALLOY OVERALL |  | PROPRIETARY CHARACTERISTICS | PACS |  | MAXIMUM OPERATING PRESSURE | 300.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MEDIA FOR WHICH DESIGNED | AIR SINGLE RESPONSE |  | NOMINAL THREAD SIZE | 0.500 INCHES 2ND END |  | NOMINAL THREAD SIZE | 0.500 INCHES 1ST END |  | OPENING PRESSURE SETTING | 90.0 POUNDS PER SQUARE INCH |  | VALVE OPERATION METHOD | AUTOMATIC |  | STYLE DESIGNATOR | ANGLE |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  | THREAD DIRECTION | RIGHT-HAND 2ND END |  | THREAD SERIES DESIGNATOR | NPT 2ND END |  | THREAD SERIES DESIGNATOR | NPT 1ST END | 
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