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 5920-01-546-0705
NSN 6240-00-738-8334
NSN 6620-01-431-9176
NSN 5960-00-890-9032
NSN 6240-01-122-5856
NSN 5985-00-382-7242
NSN 6220-01-246-5317
NSN 6105-00-071-4773
NSN 6135-01-468-6491
NSN 5950-00-740-4163
NSN 6645-00-527-7258
NSN 6240-00-586-6428