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 6685-00-952-5381
NSN 5998-00-135-8237
NSN 5996-01-600-1131
NSN 5996-01-483-9111
NSN 6220-00-209-9630
NSN 5925-01-072-3167
NSN 6645-01-346-4505
NSN 6220-01-553-4719
NSN 5930-01-350-3705
NSN 6650-01-388-7125
NSN 5960-00-275-2990
NSN 5996-01-541-1174