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 6135-01-084-1609
NSN 6110-01-307-3191
NSN 5990-01-332-6722
NSN 2925-00-455-2367
NSN 6685-00-375-8689
NSN 6645-00-551-8291
NSN 6320-01-313-2709
NSN 5985-00-308-6341
NSN 5996-01-578-6955
NSN 6130-01-211-1626
NSN 6105-01-147-8623
NSN 6145-01-493-6364