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 7035-00-800-0770
NSN 2925-01-364-7926
NSN 5925-01-226-1395
NSN 5935-00-632-7795
NSN 6645-01-494-3845
NSN 6645-01-650-1860
NSN 5930-01-504-4088
NSN 5835-01-399-5820
NSN 5985-01-652-2956
NSN 5950-01-631-5053
NSN 5925-00-660-3892
NSN 5895-00-596-8678