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 6645-00-183-8812
NSN 2925-01-206-2250
NSN 6220-00-197-3102
NSN 5925-00-816-9929
NSN 5975-01-543-8693
NSN 6685-01-441-2198
NSN 6645-00-075-4764
NSN 5985-00-644-9752
NSN 6645-01-054-3969
NSN 5998-00-795-7644
NSN 6145-00-961-0775
NSN 5950-01-610-5957