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 5930-01-024-1241
NSN 5996-00-963-1352
NSN 6135-01-309-8414
NSN 6320-01-585-8468
NSN 7035-00-476-7178
NSN 6150-01-345-9793
NSN 5835-00-980-0468
NSN 6105-01-449-2375
NSN 6620-01-054-9346
NSN 6150-00-504-6940
NSN 5999-00-977-9952
NSN 5960-01-376-3880