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 6685-01-629-3227
NSN 5990-01-510-4699
NSN 5905-01-506-8811
NSN 5905-01-088-8301
NSN 6220-01-610-1511
NSN 6645-01-565-0567
NSN 5920-01-097-9927
NSN 5996-01-472-7028
NSN 5895-00-565-3229
NSN 2925-01-604-8984
NSN 6645-00-724-7668
NSN 4140-00-830-9515