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		                        | National Stock Number:
 4820-00-772-0119
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 007720119
 
 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:
 
 | 26700-7 | 81873 | WOODWARD HRT INC |  | 4820PL1612811 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH |  | 9090270 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF SEPARABLE SECTIONS. |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | ALUMINUM ALLOY BODY |  |  | STEEL FLOW CONTROL DEVICE |  | SURFACE TREATMENT | ANODIZE |  | FLOW CONTROL DEVICE | POPPET |  | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE |  | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | CONNECTION TYPE | THREADED INTERNAL BOSS ALL ENDS |  | CONNECTION STYLE | GASKET SEAL(BOSS) ALL ENDS |  | THREAD SERIES DESIGNATOR | UNF ALL ENDS |  | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS |  | THREAD CLASS | 3B ALL ENDS |  | THREAD DIRECTION | RIGHT-HAND ALL ENDS |  | DISK LOADING METHOD | SPRING |  | OPENING PRESSURE SETTING | 75.0 POUNDS PER SQUARE INCH |  | SPECIAL FEATURES | FURNISHED W/A DEVISE FOR FREE FLOW;TWO UNTHD MTG HOLES 0.195 IN. DIA 1.236 IN. C TO C THRU THE W | 
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