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 4140-01-557-1539
NSN 5895-01-134-5330
NSN 2925-00-149-0760
NSN 6240-01-510-9299
NSN 5935-01-538-0524
NSN 5935-01-563-5558
NSN 7035-00-225-6499
NSN 6685-00-623-4785
NSN 5950-01-089-9712
NSN 6145-00-855-8732
NSN 5975-01-447-2771
NSN 4140-00-531-6696