Lincoln K and KP Numbers › Lincoln Electric KP3583-1-75R NOZZLE 550 THREAD-ON, 1/8R 3/4 ID Lincoln Electric KP3583-1-75R NOZZLE 550 THREAD-ON, 1/8R 3/4 ID Sale Price: $21.06 Original Price: $23.59 NOZZLE 550 THREAD-ON, 1/8R 3/4 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! NOZZLE 550 THREAD-ON, 1/8R 3/4 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000