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		                        | National Stock Number:
 4820-00-816-1877
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 008161877
 
 Description:
 VALVE,CHECK
 
 Detail:
 A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
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 Manufacturer Information:
 
 | 405170-7 | 80020 | NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2 | 
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 Techincal Specification:
 
 | CONNECTION STYLE | FLARED (TUBE) 1ST END |  | CONNECTION TYPE | THREADED EXTERNAL PIPE 2ND END |  | CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |  | DISK LOADING METHOD | SPRING |  | FLOW CONTROL DEVICE | POPPET |  | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 2.000 INCHES 1ST END |  | NOMINAL PIPE SIZE ACCOMMODATED | 2.000 INCHES 2ND END |  | NOMINAL THREAD SIZE | 2.000 INCHES 2ND END |  | NOMINAL THREAD SIZE | 2.500 INCHES 1ST END |  | MAXIMUM OPERATING PRESSURE | 4000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MEDIA FOR WHICH DESIGNED | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |  | SEAT ANGLE | 37.0 DEGREES 1ST END |  | STYLE DESIGNATOR | STRAIGHT THRU |  | THREAD CLASS | 3A 1ST END |  | THREAD DIRECTION | RIGHT-HAND 1ST END |  | THREAD DIRECTION | RIGHT-HAND 2ND END |  | THREAD QUANTITY PER INCH | 11-1/2 2ND END |  | THREAD QUANTITY PER INCH | 12 1ST END |  | THREAD SERIES DESIGNATOR | NPT 2ND END |  | THREAD SERIES DESIGNATOR | UN 1ST END |  | VALVE OPERATION METHOD | AUTOMATIC | 
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