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 5930-01-515-2929
NSN 5996-01-581-9337
NSN 5945-01-459-2953
NSN 5930-00-038-7775
NSN 5945-00-290-1779
NSN 5925-01-267-2247
NSN 6320-00-511-7331
NSN 7035-01-092-8962
NSN 5925-01-033-9086
NSN 5895-01-325-2581
NSN 6135-01-542-0659
NSN 7035-00-104-7613