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		                        | National Stock Number:
 4820-00-287-4675
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 002874675
 
 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:
 
 | 1030 | 94874 | DROITCOUR CO |  | 21106 | 81982 | HYDRO-AIRE AEROSPACE CORP |  | 2365274 | 18355 | THE BOEING COMPANY |  | AA31306H | 62983 | EATON AEROSPACE, LLC |  | AN6279-6CD | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |  | 4820PL1332262 | 9009H | INSPEKTORAT WSPARCIA SIL ZBROJNYCH |  | HPLVA0 | 00021 | BENBOW MFG CORP |  | HPLVA0 | 49200 | PROSPERITY A DIV OF AMETEK INC | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | ANGLE W/OFFSET |  | VALVE OPERATION METHOD | AUTOMATIC |  | SURFACE TREATMENT | ANODIZE |  | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE |  | MAXIMUM OPERATING PRESSURE | 3850.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | CONNECTION TYPE | THREADED INTERNAL BOSS 1ST END |  | CONNECTION STYLE | GASKET SEAL(BOSS) 1ST END |  | THREAD SERIES DESIGNATOR | UNF 1ST END |  | NOMINAL THREAD SIZE | 0.562 INCHES 1ST END |  | THREAD QUANTITY PER INCH | 18 1ST END |  | THREAD CLASS | 3B 1ST END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  | BONNET TYPE | INSIDE SCREW |  | BONNET ATTACHMENT METHOD | INTEGRAL |  | DISK LOADING METHOD | SPRING |  | OPENING PRESSURE SETTING | 3400.0 POUNDS PER SQUARE INCH |  | ADJUSTABLE PRESSURE RANGE | 2300.0 TO 3850.0 POUNDS PER SQUARE INCH |  | MOUNTING FACILITY | THREADED FASTENER |  | FEATURES PROVIDED | BONNET PACKING | 
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