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 6645-00-269-8440
NSN 5905-01-435-8409
NSN 5910-01-519-3043
NSN
NSN 5895-01-478-0241
NSN 5965-01-032-0940
NSN 5930-01-455-9622
NSN 5910-00-821-8729
NSN 5950-01-013-2577
NSN 5930-01-211-6894
NSN 6130-00-604-1180
NSN 6135-01-272-6039