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 5905-00-593-4814
NSN 5925-00-762-3790
NSN 6240-01-387-7178
NSN 6610-00-814-0574
NSN 7035-01-235-6023
NSN 6685-01-431-7927
NSN 7035-01-534-4459
NSN 5996-01-484-3448
NSN 6105-00-717-2459
NSN 4140-00-289-9263
NSN 6130-01-501-5300
NSN 5985-00-562-4310