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		                        | National Stock Number:
 4820-00-694-8051
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 006948051
 
 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:
 
 | 627-1 | 72139 | HUCK INTERNATIONAL, INC. | 
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 Techincal Specification:
 
 | STYLE DESIGNATOR | ANGLE |  | VALVE OPERATION METHOD | AUTOMATIC |  | MATERIAL | ALUMINUM ALLOY BODY |  |  | STEEL FLOW CONTROL DEVICE |  |  | STEEL SEAT |  | SURFACE TREATMENT | ANODIZE |  | FLOW CONTROL DEVICE | POPPET |  | CONNECTION TYPE | THREADED INTERNAL BOSS ALL ENDS |  | CONNECTION STYLE | GASKET SEAL(BOSS) ALL ENDS |  | SEAT ANGLE | 37.0 DEGREES ALL ENDS |  | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES ALL ENDS |  | THREAD SERIES DESIGNATOR | UNF ALL ENDS |  | NOMINAL THREAD SIZE | 0.437 INCHES ALL ENDS |  | THREAD QUANTITY PER INCH | 20 ALL ENDS |  | THREAD CLASS | 3B ALL ENDS |  | THREAD DIRECTION | RIGHT-HAND ALL ENDS |  | RENEWABLE SEAT RING TYPE | PRESSED-IN |  | BONNET TYPE | INSIDE SPRING |  | BONNET ATTACHMENT METHOD | THREADED |  | DISK LOADING METHOD | SPRING |  | ADJUSTABLE PRESSURE RANGE | 1000.0 TO 2100.0 POUNDS PER SQUARE INCH |  | FEATURES PROVIDED | BONNET PACKING AND |  |  | PRESSURE TIGHT OUTLET SIDE |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 72139 |  | DESIGN CONTROL REFERENCE | 627-1 | 
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