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 7035-01-600-5516
NSN 5915-01-377-3545
NSN 6650-01-626-0104
NSN 7035-00-252-7467
NSN 5895-01-503-5132
NSN 6240-00-469-2339
NSN 5960-01-564-5044
NSN 5960-00-615-0809
NSN 6135-00-932-3136
NSN 6685-01-123-5608
NSN 6150-01-348-2100
NSN 6135-01-429-9029