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 6320-01-216-1678
NSN 6320-01-378-6191
NSN 6130-00-292-5058
NSN 5905-01-381-0638
NSN 6220-01-139-3520
NSN 6320-01-422-1212
NSN 5999-01-508-0218
NSN 5895-01-379-0878
NSN 5915-01-058-7702
NSN 5950-01-555-8152
NSN 4140-01-608-4073
NSN 5945-01-131-9892