Special Features:

Stepped inner periphery beyond threads, first step 0.250 in.Lg 5.250 in.Dia second step 0.093 in.Lg 5.812 in. Dia, inner surface of first step to be square with pd of thread within 0.003 in. Total indicator reading

Properties:

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)