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 6150-00-407-2118
NSN 5975-01-544-1766
NSN 6110-01-367-6526
NSN 6145-01-336-1906
NSN 5998-01-384-3148
NSN 6620-00-730-6368
NSN 5905-00-470-1320
NSN 5925-00-915-1204
NSN 5965-00-104-3121
NSN 5985-01-009-7792
NSN 5920-01-241-0566
NSN 7035-01-199-6915