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 5910-01-592-1203
NSN 5930-01-220-6885
NSN 5965-01-544-4393
NSN 5935-00-617-0250
NSN 2925-01-446-6976
NSN 5996-01-465-9501
NSN 5935-01-552-3294
NSN 4140-01-466-4910
NSN 6135-00-295-2614
NSN 5895-01-361-6920
NSN 5910-01-310-0585
NSN 6110-01-641-8931