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 6685-00-225-8571
NSN 6150-01-281-1509
NSN 6320-00-519-0770
NSN 6135-01-061-1862
NSN 6110-00-705-1368
NSN 5920-00-173-4434
NSN 6240-01-440-4632
NSN 6150-01-508-4509
NSN 5910-00-204-8497
NSN 6320-01-098-2503
NSN 5910-01-462-7014
NSN 5945-00-431-3744