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		                        | National Stock Number:
 4820-01-250-1757
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 012501757
 
 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:
 
 | RA101S30 | 076M6 | AMZ ALABAMA INC. |  | RA101S30 | 09990 | PARKER-HANNIFIN CORPORATION |  | RA101S30 | 0FW39 | BAE SYSTEMS TACTICAL VEHICLE SYSTEMS LP | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | SCREW-IN CARTRIDGE |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | STEEL BODY |  | FLOW CONTROL DEVICE | POPPET |  | MAXIMUM OPERATING PRESSURE | 3500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MAXIMUM OPERATING TEMP | 250.0 DEG FAHRENHEIT SINGLE RESPONSE |  | CONNECTION TYPE | THREADED CARTRIDGE ALL ENDS |  | CONNECTION STYLE | PLAIN (SCREW-IN CARTRIDGE) ALL ENDS |  | THREAD SERIES DESIGNATOR | UNF ALL ENDS |  | NOMINAL THREAD SIZE | 0.875 INCHES ALL ENDS |  | THREAD CLASS | 2A ALL ENDS |  | THREAD DIRECTION | RIGHT-HAND ALL ENDS |  | DISK LOADING METHOD | SPRING |  | OPENING PRESSURE SETTING | 1500.0 POUNDS PER SQUARE INCH |  | SPECIAL FEATURES | CARTRIDGE TYPE; PILOT-OPERATED | 
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