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 5985-00-679-2060
NSN 5925-01-551-1265
NSN 6105-01-123-8887
NSN 5935-01-522-3982
NSN 4140-01-374-2210
NSN 5945-01-056-4142
NSN 5998-00-877-9506
NSN 6645-01-645-4291
NSN 2925-01-303-5266
NSN 5965-01-453-4403
NSN 5910-01-334-6671
NSN 6645-01-152-1092