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.)
NSN 6220-01-295-2022
NSN 5855-01-516-5211
NSN 5925-01-629-7248
NSN 5965-01-320-1808
NSN 6620-01-512-2016
NSN 5965-00-246-4767
NSN 5975-00-049-9057
NSN 5950-00-682-8264
NSN 5930-00-134-5745
NSN 5930-01-353-9148
NSN 6150-01-514-3799
NSN 5930-00-240-4247