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 7035-00-500-7839
NSN 5965-01-475-7871
NSN 6105-00-111-3353
NSN 6130-00-175-8066
NSN 5996-00-222-6049
NSN 5895-00-525-3295
NSN 5835-00-884-4480
NSN 5930-01-168-7594
NSN 6105-01-022-8693
NSN 5920-00-384-8926
NSN 6135-01-507-4346
NSN 6320-00-149-7570