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 6320-01-111-8851
NSN 6645-01-361-8319
NSN 7035-01-325-0536
NSN 5920-00-573-3127
NSN 5925-01-028-1717
NSN 6220-00-177-3086
NSN 5910-01-031-7129
NSN 6105-01-214-1844
NSN 5965-00-990-8669
NSN 6620-00-494-5122
NSN 5895-01-500-2304
NSN 5945-00-159-7628