Lincoln K and KP Numbers › Lincoln Electric KP1957-2 NOZZLE, GAS, FIXED-FLUSH, .51 ID Lincoln Electric KP1957-2 NOZZLE, GAS, FIXED-FLUSH, .51 ID Sale Price: $41.92 Original Price: $46.95 NOZZLE, GAS, FIXED-FLUSH, .51 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! NOZZLE, GAS, FIXED-FLUSH, .51 ID PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000