Lincoln K and KP Numbers › Lincoln Electric KP4693-45 GUN TUBE AND NUT ASBLY 250 Lincoln Electric KP4693-45 GUN TUBE AND NUT ASBLY 250 Sale Price: $106.65 Original Price: $119.45 GUN TUBE AND NUT ASBLY 250 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! GUN TUBE AND NUT ASBLY 250 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000