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 6685-01-268-2294
NSN 6145-00-284-1514
NSN 5945-00-058-1906
NSN 5835-01-620-0675
NSN 6320-01-054-3046
NSN 6645-00-248-5434
NSN 5950-01-249-9119
NSN 2925-00-157-1602
NSN 6110-00-269-2696
NSN 6645-01-467-9983
NSN 5975-00-290-4285
NSN 5920-01-050-6557