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.)
Classification: Nuts of iron or steel
NSN 5999-01-249-5864
NSN 5975-01-551-7389
NSN 6105-00-496-5761
NSN 5905-01-480-3291
NSN 6610-01-278-9704
NSN 5985-00-500-0269
NSN 5920-01-053-9797
NSN 4140-00-659-8283
NSN 5915-00-087-3139
NSN 5999-01-264-8779
NSN 5975-01-141-9353
NSN 6220-01-314-5896