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 6220-01-192-1908
NSN 6135-00-087-5300
NSN 4140-01-145-4474
NSN 6320-01-384-3850
NSN 5910-01-071-3155
NSN 5905-01-484-9738
NSN 5905-01-252-6820
NSN 5985-01-526-6911
NSN 7035-00-173-2281
NSN 6240-00-560-5426
NSN 5999-01-600-2644
NSN 5895-00-765-9615