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 5910-01-083-1209
NSN 2925-00-363-9878
NSN 5925-01-323-7756
NSN 5905-01-026-5315
NSN 5910-00-012-4390
NSN 5965-00-150-1144
NSN 6105-00-762-6376
NSN 6620-00-088-8045
NSN 5996-01-173-3202
NSN 5945-00-172-4833
NSN 5945-00-050-1451
NSN 5895-01-218-5267