Lincoln K and KP Numbers › Lincoln Electric KP4523-3-75R WC NOZZLE 500A, THREAD-ON, 1/4R, 3/4 ID Lincoln Electric KP4523-3-75R WC NOZZLE 500A, THREAD-ON, 1/4R, 3/4 ID Sale Price: $23.39 Original Price: $26.20 WC NOZZLE 500A, THREAD-ON, 1/4R, 3/4 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! WC NOZZLE 500A, THREAD-ON, 1/4R, 3/4 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000