Lincoln K and KP Numbers › Lincoln Electric KP1951-3 GUN TUBE ASBLY, 60 DEG, 5 IN RADIUS,500A Lincoln Electric KP1951-3 GUN TUBE ASBLY, 60 DEG, 5 IN RADIUS,500A Sale Price: $273.37 Original Price: $306.17 GUN TUBE ASBLY, 60 DEG, 5 IN RADIUS,500A PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! GUN TUBE ASBLY, 60 DEG, 5 IN RADIUS,500A PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000