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 5999-01-439-9792
NSN 2925-00-041-0439
NSN 6685-00-475-9589
NSN 5835-01-608-8868
NSN 5895-01-072-0233
NSN 6105-01-235-8650
NSN 5945-00-989-1210
NSN 2925-00-321-2032
NSN 5920-01-459-0516
NSN 6130-01-461-9748
NSN 5999-01-384-8789
NSN 6220-00-702-0002