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 5935-01-392-0981
NSN 5915-01-321-1892
NSN 5945-00-480-3222
NSN 5950-00-600-7948
NSN 6130-01-271-5275
NSN 5999-01-571-7626
NSN 6135-00-203-9645
NSN 5925-01-422-4748
NSN 6145-00-826-6676
NSN 5985-01-304-0019
NSN 6320-01-578-6006
NSN 6240-01-151-2330