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 5935-01-318-1203
NSN 5960-00-407-7705
NSN 5905-00-578-2563
NSN 5950-01-320-2844
NSN 5975-00-320-8962
NSN 6320-01-512-2031
NSN 6685-01-203-0574
NSN 5895-01-104-7278
NSN 5998-01-320-5497
NSN 5996-01-342-4155
NSN 5935-00-484-2247
NSN 5905-00-455-3702