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		                        | National Stock Number:
 4820-00-910-0865
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 009100865
 
 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:
 
 | 16-004-009 | 43990 | NORGREN C A CO |  | 16-004-010 | 43990 | NORGREN C A CO |  | 331535 | 57733 | STEWART-WARNER CORPORATION | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | STRAIGHT THRU |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | COPPER ALLOY BODY |  | FLOW CONTROL DEVICE | DISK OR |  |  | STEM |  | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |  |  | WATER, FRESH 2ND RESPONSE |  | MAXIMUM OPERATING PRESSURE | 75.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MAXIMUM OPERATING TEMP | 200.0 DEG FAHRENHEIT SINGLE RESPONSE |  | CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |  | CONNECTION STYLE | PLAIN (PIPE) 1ST END |  | THREAD SERIES DESIGNATOR | NPT 1ST END |  | NOMINAL THREAD SIZE | 0.250 INCHES 1ST END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  | BONNET TYPE | INSIDE SPRING |  | BONNET ATTACHMENT METHOD | INTEGRAL |  | DISK LOADING METHOD | SPRING |  | ADJUSTABLE PRESSURE RANGE | 25.0 TO 75.0 POUNDS PER SQUARE INCH | 
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