High-density electrical interconnect system

An electrical connector comprising:

• a projection-type interconnect component including an insulative buttress and a plurality of electrically conductive contacts, the contacts spaced from each other around a circumference of the insulative buttress;
• and
• a receiving-type interconnect component for receiving said projection-type interconnect component, said receiving-type interconnect component including a substrate, a plurality of flexible, electrically conductive contacts held spaced from each other in said substrate, and a movable spacer having holes through which said contacts are received, said spacer being movable relative to the flexible contacts and the substrate to a first position at which the spacer flexes said contacts and a second position at which the spacer does not flex said contacts, and wherein the insulative buttress of said projection-type interconnect component displaces the spacer from the first position to the second position when said projection-type interconnect component is received by said receiving-type interconnect component.