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		                        | National Stock Number:
 4820-00-288-6902
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 002886902
 
 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:
 
 | S2230566-6 | 18355 | THE BOEING COMPANY |  | S2230566-6 | 88277 | THE BOEING COMPANY | 
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 Techincal Specification:
 
 | MATERIAL | STEEL OVERALL |  | STYLE DESIGNATOR | STRAIGHT THRU |  | FLOW CONTROL DEVICE | CONE |  | MEDIA FOR WHICH DESIGNED | HYDRAULIC FLUID, MINERAL BASE SINGLE RESPONSE |  | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MAXIMUM OPERATING TEMP | -65.0 DEG FAHRENHEIT 1ST RESPONSE |  |  | 180.0 DEG FAHRENHEIT 2ND 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 | 0.375 INCHES 1ST END |  | THREAD SERIES DESIGNATOR | UNF ALL ENDS |  | NOMINAL THREAD SIZE | 0.562 INCHES ALL ENDS |  | THREAD QUANTITY PER INCH | 18 1ST END |  | 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 | 88277 |  | DESIGN CONTROL REFERENCE | S2230566-6 | 
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