Special Features:

Fscm 19207, p/n 10887399, block, 1.620 inch diameter, 0.375 inches thick, with two holes, 1/8-27 npt, one inch apart, 0.500 inches from the center

Properties:

A nut, round in shape, having all or part of its outer surface knurled. It may have provisions for external wrenching. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, round. (when height or thickness, and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance).