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 7035-01-426-4133
NSN 5855-01-495-2670
NSN 6610-01-302-0585
NSN 6320-01-376-2778
NSN 5990-01-052-9343
NSN 6685-01-510-3891
NSN 5855-01-100-3272
NSN 6105-00-365-4519
NSN 2925-00-676-8334
NSN 5945-01-515-2227
NSN 6685-01-243-1265
NSN 5835-00-220-9335