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 5925-01-462-6172
NSN 6320-00-564-2772
NSN 5920-00-683-7883
NSN 5990-01-294-6198
NSN 5915-01-653-8863
NSN 5930-00-528-6996
NSN 6620-00-140-8644
NSN 5950-01-521-7575
NSN 5910-01-082-1444
NSN 6240-01-533-7305
NSN 6240-01-221-1378
NSN 5905-00-577-7752