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 6240-01-323-0490
NSN 5990-00-791-4064
NSN 5905-01-395-2524
NSN 6130-00-836-0115
NSN 6105-01-259-8289
NSN 5960-01-509-8779
NSN 6110-00-170-6520
NSN 5975-01-367-1859
NSN 6145-00-813-6157
NSN 4140-01-557-5342
NSN 2925-01-359-4027
NSN 5975-00-943-6766