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 5999-01-092-9773
NSN 4140-00-932-6074
NSN 6610-01-045-8249
NSN 5925-01-061-9171
NSN 4140-00-276-9154
NSN 5990-00-085-4299
NSN 6610-01-272-9691
NSN 5905-00-260-4358
NSN 5998-01-218-5733
NSN 5855-01-316-9642
NSN 5910-00-204-5784
NSN 4140-01-048-0484