3C is a top plan view of the mounting tab of FIG. 2A. [0022]FIG. 4 is a partial, cross-sectional view of the fan housing of the fan assembly of FIG. 1A showing the mounting tab received within the mounting aperture of the fan housing and threadedly engaged by the fastener [0023]FIG. 5 is a perspective view of a rack enclosure including multiple fan assemblies secured to a mounting member in accord