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 6610-01-593-0135
NSN 2925-00-583-9669
NSN 6145-01-090-8706
NSN 5975-00-843-2585
NSN 6320-00-578-6898
NSN 6610-00-561-0484
NSN 6135-01-074-8220
NSN 6685-00-751-3091
NSN 5910-00-232-2399
NSN 5998-01-538-7108
NSN 5996-01-024-2930
NSN 6685-01-240-2360