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 6685-00-974-0405
NSN 5905-00-160-9042
NSN 5998-01-087-8112
NSN 6130-01-477-1884
NSN 5920-00-730-8541
NSN 5999-00-424-9775
NSN 5960-00-128-3835
NSN 5935-01-614-3939
NSN 5975-01-554-3158
NSN 6135-01-022-5427
NSN 5975-01-186-2224
NSN 5915-00-686-9149