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 5965-00-938-2814
NSN 5930-01-526-2616
NSN 5999-01-463-8641
NSN 5910-01-025-6738
NSN 5915-00-230-8748
NSN 6110-01-297-8066
NSN 6150-01-082-4074
NSN 5905-00-811-3625
NSN 2925-00-465-6354
NSN 5905-00-126-3112
NSN 5990-01-555-6616
NSN 6240-01-301-2243