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 5975-00-951-8272
NSN 6620-01-567-1449
NSN 5975-00-296-5040
NSN 5960-01-583-4737
NSN 6105-01-098-6559
NSN 5990-01-421-5342
NSN 5990-01-024-9659
NSN 5905-00-050-3885
NSN 6645-00-429-0172
NSN 5835-01-508-2528
NSN 6320-00-036-3688
NSN 6110-00-005-7878