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 5910-01-253-3412
NSN 6130-00-471-5067
NSN 6320-01-039-5891
NSN 5996-00-621-3898
NSN 5925-00-012-4749
NSN 7035-01-158-8860
NSN 6135-00-203-9645
NSN 5855-00-310-2740
NSN 5990-01-051-8304
NSN 5965-01-100-1195
NSN 6320-01-422-1212
NSN 7035-00-320-5644