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 5905-01-421-4122
NSN 5930-01-359-7744
NSN 5950-01-266-3735
NSN 5985-01-391-7665
NSN 5855-01-159-1654
NSN 6240-01-571-7706
NSN 6135-01-199-1185
NSN 5930-00-073-0564
NSN 5998-01-606-2202
NSN 6645-01-594-6407
NSN 5905-01-255-3905
NSN 5855-00-494-9581