|  | 
                            
                                |   | 
		                    
		                        | National Stock Number:
 4820-00-825-4369
 
 Federal Supply Class:
 4820
 
 National Item Identification Number:
 008254369
 
 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.
 | 
		                    
		                        | 
 Manufacturer Information:
 
 | 2C8242 | 99240 | CRISSAIR INC |  | SS50-919K18D | 06239 | AUSCO INC |  | SS50-919K18D | 78286 | SIKORSKY AIRCRAFT CORPORATION | 
 | 
				            
					            | 
 Techincal Specification:
 
 | DISK LOADING METHOD | SPRING |  | CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS |  | CONNECTION STYLE | FLARED (TUBE) ALL ENDS |  | FLOW CONTROL DEVICE | POPPET |  | MATERIAL | ALUMINUM ALLOY BODY |  | MATERIAL | ALUMINUM ALLOY SEAT |  | PROPRIETARY CHARACTERISTICS | PACS |  | MAXIMUM OPERATING PRESSURE | 3000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |  | MOUNTING POSITION | HORIZONTAL OR VERTICAL |  | NOMINAL THREAD SIZE | 0.562 INCHES 2ND END |  | NOMINAL THREAD SIZE | 1.062 INCHES 1ST END |  | SEAT ANGLE | 37.0 DEGREES ALL ENDS |  | VALVE OPERATION METHOD | AUTOMATIC |  | STYLE DESIGNATOR | STRAIGHT THRU |  | THREAD CLASS | 3A ALL ENDS |  | THREAD DIRECTION | RIGHT-HAND ALL ENDS |  | THREAD SERIES DESIGNATOR | UNF ALL ENDS | 
 |