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 5910-01-556-9689
NSN 6240-00-580-0666
NSN 5855-01-020-7982
NSN 6145-01-018-6539
NSN 6685-00-853-3494
NSN 6135-01-062-9356
NSN 6145-00-170-6872
NSN 4140-01-048-4424
NSN 5855-00-256-5562
NSN 5915-00-206-0086
NSN 6650-00-216-6365
NSN 4140-00-469-2606