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 5998-01-644-7636
NSN 5910-00-951-4839
NSN 6320-01-473-9024
NSN 6135-01-177-3552
NSN 5920-00-491-9163
NSN 6645-01-320-4138
NSN 7035-00-574-4223
NSN 6620-01-057-9621
NSN 5996-00-461-3416
NSN 5985-01-572-2230
NSN 6685-00-754-7495
NSN 5930-01-649-5256