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 6685-01-428-9618
NSN 6620-01-408-4464
NSN 5998-00-475-2792
NSN 5895-00-248-7477
NSN 5950-01-184-3483
NSN 6620-00-735-2892
NSN 5905-01-359-1372
NSN 6110-01-275-1039
NSN 7035-00-020-2227
NSN 6320-01-302-5157
NSN 6620-01-401-5356
NSN 5965-01-187-8574