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 6150-01-436-1134
NSN 6320-00-394-8458
NSN 6320-01-425-1417
NSN 6135-01-285-8807
NSN 6320-00-646-3311
NSN 5965-01-299-7294
NSN 5945-01-252-8662
NSN 5975-01-007-7075
NSN 6220-01-448-5438
NSN 6145-00-867-4646
NSN 5950-01-145-5529
NSN 5915-00-777-1032