Lincoln K and KP Numbers › Lincoln Electric KP2743-1-38F-B25 NOZZLE 550A, THREAD-ON, FLUSH, 3/8 ID Lincoln Electric KP2743-1-38F-B25 NOZZLE 550A, THREAD-ON, FLUSH, 3/8 ID Sale Price: $1,140.40 Original Price: $1,277.25 NOZZLE 550A, THREAD-ON, FLUSH, 3/8 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000 Add To Cart Added! NOZZLE 550A, THREAD-ON, FLUSH, 3/8 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 25.000