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 5999-01-512-8287
NSN 6145-00-846-0974
NSN 6645-00-704-3630
NSN 5925-01-033-3853
NSN 6220-00-111-3188
NSN 6320-01-629-1277
NSN 5998-01-500-0214
NSN 5945-01-441-6458
NSN 5905-00-378-3742
NSN 5996-01-576-0774
NSN 6145-01-026-3827
NSN 5960-01-130-9414