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 6105-00-338-7504
NSN 5855-01-499-4139
NSN 5920-00-167-2700
NSN 5925-00-779-7307
NSN 5985-00-097-6317
NSN 5910-01-165-8646
NSN 7035-00-079-7189
NSN 5945-01-529-7321
NSN 5965-00-735-9315
NSN 7035-01-355-7284
NSN 5855-00-411-8688
NSN 5975-00-051-3349