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 2925-01-074-9102
NSN 6685-01-458-1133
NSN 5930-00-511-8382
NSN 6650-01-571-7122
NSN 5996-00-175-0462
NSN 2925-01-341-7423
NSN 5925-01-391-1014
NSN 6135-00-973-5632
NSN 6685-01-573-6443
NSN 5895-00-408-4275
NSN 5990-01-568-5565
NSN 6105-01-011-0437