I cleaned and removed the 5" long, 8" diameter flange bellows from a Holometer bend cube. There is still some gunk on them, but it did not come off with isopropanol and Kim wipes, so it hopefully shouldn't come off in B102. I covered the open end in clean aluminum foil.

I also removed the zero length reducer flange from the bend cube. I covered it and the opening on the cube in aluminum foil. There is some gunk close to the vacuum side of the part.

I moved the bellows and other LFC parts into B102 onto the large optics table.

I measured the screw sizes of the parts I disassembled:

5/16-24, 1.5" long below the head for attaching the zero length reducer (1" thick) to the bend cube.

5/16-24, 2" long set screw for attaching the bellows (1" thick flange) to the zero length reducer. A washer and nut secured the bellows to the zero length reducer.

See attached photos.