Payload support track interface and fitting

A payload support assembly, comprising:

• a component having at least one support member;
• an interface assembly coupled to the support member;
• a floor assembly including at least one floor panel and at least one seat track, the seat track including:
• at least one elongated support;
• and
• an engagement member coupled to the elongated support and having a plurality of coupling apertures disposed therethrough, the plurality of coupling apertures configured to engage with two clamp arms of the interface assembly in an unsecured position where the clamp arms are extractable from a corresponding coupling aperture, and the plurality of coupling apertures configured to engage with the two clamp arms and to engage therebetween with a lug of the interface assembly in a secured position where the clamp arms and the lug are firmly fixed to the corresponding coupling aperture,
• wherein the two clamp arms extend longitudinally along the engagement member and span across at least two coupling apertures of the engagement member when the plurality of coupling apertures are in the secured position.

An aircraft, comprising:

• a fuselage operatively coupled to an airframe;
• a propulsion system operatively coupled to the airframe;
• a component having at least one support member;
• an interface assembly coupled to the support member;
• a floor assembly including at least one floor panel and at least one seat track, the seat track including:
• at least one elongated support;
• and
• an engagement member coupled to the elongated support and having a plurality of coupling apertures disposed therethrough, each coupling aperture configured to receive two clamp arms of the interface assembly and further configured to engage with the two clamp arms in an unsecured position where the two clamp arms are extractable from an associated coupling aperture, and in a secured position where the two clamp arms are fixed firmly to the associated coupling aperture, wherein the two clamp arms engage an underside of the engagement member and extend longitudinally along the engagement member to span across at least two coupling apertures of the engagement member when the corresponding coupling apertures are engaged with the two clamp arms in the secured position.