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 5945-01-104-0433
NSN 6220-01-406-5351
NSN 6220-01-160-7249
NSN 2925-00-478-3742
NSN 5930-01-031-5158
NSN 5910-00-460-6216
NSN 5925-00-529-0441
NSN 5996-01-271-5661
NSN 5990-00-371-6590
NSN 5990-00-398-0507
NSN 5999-00-939-7462
NSN 6145-00-162-0238