Lincoln K and KP Numbers › Lincoln Electric KP4696-45SN GUN TUBE AND NUT ASBLY 550 SN Lincoln Electric KP4696-45SN GUN TUBE AND NUT ASBLY 550 SN Sale Price: $106.65 Original Price: $119.45 GUN TUBE AND NUT ASBLY 550 SN PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! GUN TUBE AND NUT ASBLY 550 SN PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000