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: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6645-01-432-7052
NSN 6240-00-364-0850
NSN 5998-01-579-9735
NSN 5975-01-066-2075
NSN 7035-01-297-9806
NSN 5950-01-338-0715
NSN 6685-00-589-5445
NSN 6650-01-017-0980
NSN 5985-00-051-6744
NSN 6145-00-310-2598
NSN 5960-01-289-9733
NSN 6650-00-796-4176