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 6220-01-385-1305
NSN 2925-00-147-8150
NSN 5960-01-242-5297
NSN 6645-00-819-5045
NSN 6150-01-050-7528
NSN 5945-01-067-4879
NSN 5945-00-953-8834
NSN 6620-01-173-8804
NSN 6685-00-814-4573
NSN 5910-01-415-3108
NSN 4140-00-218-3579
NSN 5895-01-249-8754