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 5998-01-141-2874
NSN 6645-01-463-2198
NSN 5999-01-034-9467
NSN 6105-01-633-0157
NSN 6650-01-456-0747
NSN 6150-01-210-2211
NSN 6620-01-043-5169
NSN 6620-01-007-1057
NSN 5855-01-346-7682
NSN 5998-01-487-4922
NSN 2925-01-407-4958
NSN 7035-01-215-2449