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		                        | National Stock Number:
 4820-00-490-6429
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 004906429
 
 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:
 
 | 621B9 3-8 2 | 72352 | CURTISS-WRIGHT FLOW CONTROL CORPORATION |  | 621B9 3-8 2 | 86768 | TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC BUSINESS UNIT | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | ANGLE |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | ALUMINUM ALLOY BODY |  |  | ALUMINUM ALLOY FLOW CONTROL DEVICE |  | SURFACE TREATMENT | ANODIZE |  | FLOW CONTROL DEVICE | POPPET |  | MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE |  |  | HYDRAULIC FLUID, PETROLEUM BASE 2ND RESPONSE |  | MAXIMUM OPERATING PRESSURE | 3600.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MAXIMUM OPERATING TEMP | 225.0 DEG FAHRENHEIT SINGLE RESPONSE |  | CONNECTION TYPE | THREADED INTERNAL PIPE 1ST END |  |  | THREADED EXTERNAL PIPE 2ND END |  | CONNECTION STYLE | PLAIN,OPTIONAL END(PIPE) 1ST END |  |  | PLAIN (PIPE) 2ND END |  | THREAD SERIES DESIGNATOR | NPT 1ST END |  |  | NPT 2ND END |  | NOMINAL THREAD SIZE | 0.375 INCHES 1ST END |  |  | 0.375 INCHES 2ND END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  |  | RIGHT-HAND 2ND END |  | DISK LOADING METHOD | SPRING |  | ADJUSTABLE PRESSURE RANGE | 800.0 TO 1500.0 POUNDS PER SQUARE INCH |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 72352 |  | DESIGN CONTROL REFERENCE | 621B9 3-8 2 | 
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