Assembly with mistake proof bayoneted lug

An assembly for rotational equipment with an axial centerline, comprising:

• an annular first component including a flange and a lug aperture extending axially through the flange;
• an annular second component including a mount base and a bayoneted lug on the mount base, the mount base configured to axially engage the flange where the bayoneted lug extends through the lug aperture;
• and
• a fastener securing the components together, the fastener projecting axially into a fastener aperture in the mount base;
• wherein the bayoneted lug is configured to prevent mating of the fastener with the fastener aperture where the bayoneted lug is axially between the flange and the mount base.

An assembly for a turbine engine with an axial centerline, comprising:

• a vane array including a flange and a lug aperture extending axially through the flange;
• a static structure including a mount base and a bayoneted lug on the mount base, the mount base configured to axially engage the flange where the bayoneted lug extends through the lug aperture;
• and
• a fastener securing the vane array and the static structure together, the fastener projecting axially into a fastener aperture in the mount base;
• wherein the bayoneted lug is configured to prevent mating of the fastener with the fastener aperture where the bayoneted lug is axially between the flange and the mount base.