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 5935-00-912-3602
NSN 6645-01-254-0490
NSN 5945-01-398-6243
NSN 5925-01-316-1714
NSN 5905-00-248-6461
NSN 5905-01-600-4592
NSN 5920-00-549-2203
NSN 6650-01-444-1321
NSN 5910-01-444-1429
NSN 5930-00-899-2585
NSN 6320-01-225-0178
NSN 5930-01-278-4383