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 6610-00-277-7206
NSN 6135-00-546-6273
NSN 5990-01-232-2625
NSN 6220-00-269-4556
NSN 5998-01-460-4777
NSN 5985-00-823-4645
NSN 6145-00-382-6199
NSN 5998-00-622-8422
NSN 5855-01-426-5589
NSN 6610-01-281-3662
NSN 4140-01-487-8562
NSN 5910-01-396-7710