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 6685-01-521-3127
NSN 5945-01-634-0588
NSN 6105-01-641-2904
NSN 5910-00-862-0145
NSN 5905-01-368-0512
NSN 4140-00-811-2297
NSN 6240-01-290-6449
NSN 5895-01-273-0883
NSN 5920-01-426-8517
NSN 5950-01-416-3742
NSN 6620-00-606-0446
NSN 6620-00-452-5738