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 5930-00-413-0298
NSN 6685-00-596-8765
NSN 5965-01-204-8505
NSN 5975-00-409-0791
NSN 5910-01-367-6155
NSN 5996-01-202-8605
NSN 5975-01-114-3410
NSN 4140-01-373-7044
NSN 6620-01-584-6653
NSN 6685-00-010-3053
NSN 5950-01-025-9918
NSN 5998-01-512-1883