A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
NSN 6645-01-180-6219
NSN 5996-00-565-0277
NSN 2925-01-448-2880
NSN 6145-01-450-9855
NSN 5999-00-942-0148
NSN 6610-01-314-7964
NSN 5930-00-221-2288
NSN 5895-01-058-4585
NSN 5985-01-087-4964
NSN 6110-00-202-1021
NSN 6220-01-423-9197
NSN 5985-00-153-4205