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 5960-00-763-5390
NSN 6110-01-472-3641
NSN 6130-01-396-7559
NSN 5935-00-027-5659
NSN 5915-00-814-6417
NSN 6220-00-712-1779
NSN 4140-01-087-1295
NSN 5950-00-469-7224
NSN 6610-01-517-8652
NSN 6110-00-036-6386
NSN 5945-01-323-7171
NSN 5945-01-521-3104