Abstract: A metal end fitting connector having an axial bore through which a fluid is conveyed; comprises a metal stem portion which includes a first metal tubular body having a first annular rim disposed at a distal end of the first metal tubular body, wherein the distal end is adapted to be inserted into an inner channel of a metal fluid transport tube. The metal stem portion includes at least one annular sealing member extending circumferentially outward from an outer surface of the first metal tubular body; and a metal connector portion opposite the distal end of the first metal tubular body. The metal connector portion includes a second metal tubular body having a second annular rim disposed at a distal end of the second metal tubular body, wherein the distal end of the second metal tubular body is adapted to be coupled with another fluid conveying structure.