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 6220-01-551-9395
NSN 6135-01-086-8167
NSN 5910-01-464-5028
NSN 5996-00-525-1777
NSN 4140-01-629-4684
NSN 6320-00-242-3300
NSN 5998-01-502-3448
NSN 5998-00-439-6205
NSN 2925-01-509-0767
NSN 5998-00-019-5691
NSN 5975-01-211-6594
NSN 6135-00-299-6918