US Patent 7862090 Plug-in fitting for direct connection to housing

A plug in fitting for direct connection into an aperture in a housing. The fitting includes an inner cylindrical member having a body with an external diameter, a first end, and an opposed, second end having an radially extending cam. An outer sleeve includes a body and an inner diameter slightly larger than the external diameter of the inner body. A first end of the outer sleeve terminates in a radially extending flange larger than the aperture. A second end of the outer sleeve is opposed to the first end. At least one tab extends radially inward from the body of the outer sleeve, wherein the first end of the inner cylindrical member is inserted through the outer sleeve to form a combined assembly, and wherein the combined assembly is inserted through the aperture so that the radially extending flange of the outer sleeve rests against the housing and wherein the inner cylindrical member is rotated with respect to the outer sleeve so that the radially extending cam of the inner cylindrical member engages the housing and locks the assembly to the housing.