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 5905-00-686-3765
NSN 6645-01-400-2119
NSN 5960-01-358-2832
NSN 6685-00-997-6372
NSN 5998-01-422-1626
NSN 5960-00-973-7882
NSN 5930-01-253-7557
NSN 6105-00-079-0044
NSN 5990-01-630-0456
NSN 5985-01-541-8440
NSN 6130-01-094-7070
NSN 6320-01-607-1491