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 6130-01-193-6688
NSN 5905-01-435-3741
NSN 6110-01-029-3403
NSN 7035-00-679-9027
NSN 5915-01-422-2014
NSN 5998-01-196-5068
NSN 6135-01-093-7426
NSN 6685-01-294-1157
NSN 6685-01-241-2325
NSN 6645-01-361-8319
NSN 4140-01-599-9383
NSN 5975-00-915-5834