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 5945-01-179-1457
NSN 5905-00-134-5792
NSN 5945-01-605-2830
NSN 5999-01-214-6802
NSN 4140-01-329-0454
NSN 7035-01-053-4769
NSN 5975-00-240-4271
NSN 5935-01-129-5772
NSN 5915-01-548-9472
NSN 5915-01-169-8179
NSN 6320-01-512-2031
NSN 6645-01-295-4373