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 2925-00-149-0760
NSN 7035-01-421-4446
NSN 5895-00-225-0322
NSN 6320-01-501-7935
NSN 5960-00-584-4553
NSN 5910-01-510-9454
NSN 5930-01-485-3368
NSN 6620-00-491-3818
NSN 6650-01-227-6032
NSN 6220-01-067-8142
NSN 5965-00-249-6980
NSN 5996-01-387-0484