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 6220-01-446-4220
NSN 5935-01-110-7593
NSN 6135-01-388-2761
NSN 5895-00-269-3848
NSN 6145-00-258-3608
NSN 6220-00-070-9986
NSN 6320-01-170-4068
NSN 5965-00-230-8818
NSN 5855-01-622-3894
NSN 5930-01-072-3953
NSN 5930-00-066-9891
NSN 2925-00-101-7972