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 5999-00-779-9857
NSN 6685-01-468-5471
NSN 5960-01-339-0008
NSN 5910-00-618-0196
NSN 6110-01-064-6483
NSN 7035-00-433-5670
NSN 5990-01-503-0194
NSN 5930-01-025-6678
NSN 5935-00-269-5516
NSN 6220-01-147-5320
NSN 5965-01-170-9891
NSN 5950-01-424-0242