An apparatus for providing instrument access through a gel pad of a surgical access device disposed to seal an opening to a body cavity of a patient is disclosed. The apparatus includes a stem having a bore extending therethrough, the stem having a length sufficient such that when the stem is inserted through the gel pad a distal end of the stem protrudes beyond an inner surface of the gel pad. The bore is sized to permit an instrument to be inserted through the bore and through the opening into the body cavity. The stem includes a flanged opening to the bore that remains external to an outer surface of the gel pad and limits the insertion of the stem through the gel pad. The apparatus also includes a displaceable seal disposed within the bore below the flanged opening, the displaceable seal being operable to seal the bore prior to insertion of the instrument and to displace to permit insertion of the instrument while maintaining the seal.