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		                        | National Stock Number:
 4820-00-905-1963
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 009051963
 
 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:
 
 | RD8026Q1 | 51663 | HYDRO-AIRE AEROSPACE CORP. | 
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 Techincal Specification:
 
 | MATERIAL | ALUMINUM ALLOY BODY |  |  | ALUMINUM ALLOY FLOW CONTROL DEVICE |  |  | ALUMINUM ALLOY SEAT |  | SURFACE TREATMENT | ANODIZE |  | STYLE DESIGNATOR | STRAIGHT THRU |  | FLOW CONTROL DEVICE | POPPET |  | MEDIA FOR WHICH DESIGNED | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |  | MAXIMUM OPERATING PRESSURE | 150.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MAXIMUM OPERATING TEMP | 600.0 DEG FAHRENHEIT SINGLE RESPONSE |  | VALVE OPERATION METHOD | AUTOMATIC |  | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS |  | CONNECTION STYLE | FLARED (TUBE) ALL ENDS |  | SEAT ANGLE | 37.0 DEGREES 1ST END |  | NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END |  | THREAD SERIES DESIGNATOR | UNF ALL ENDS |  | NOMINAL THREAD SIZE | 0.438 INCHES ALL ENDS |  | THREAD CLASS | 3A ALL ENDS |  | THREAD DIRECTION | RIGHT-HAND ALL ENDS |  | MOUNTING POSITION | HORIZONTAL OR |  |  | VERTICAL |  | DISK LOADING METHOD | SPRING |  | THE MANUFACTURERS DATA |  |  | MANUFACTURERS CODE | 51663 |  | DESIGN CONTROL REFERENCE | RD8026Q1 | 
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