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 5855-01-658-8004
NSN 5910-00-973-2489
NSN 5905-01-432-0872
NSN 4140-00-544-1517
NSN 4140-00-602-5973
NSN 6645-01-196-6277
NSN 6130-01-439-7387
NSN 6610-01-246-4164
NSN 6220-00-854-1056
NSN 5975-00-529-3835
NSN 6610-00-932-2465
NSN 5930-00-003-8483