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 5935-01-296-2148
NSN 5835-01-369-7837
NSN 5950-01-036-8551
NSN 2925-01-628-4219
NSN 5925-01-432-2731
NSN 5930-01-085-9455
NSN 5975-01-646-5187
NSN 6110-01-413-6498
NSN 5990-00-740-0249
NSN 5935-01-020-9867
NSN 5910-01-602-3070
NSN 7035-01-423-1755