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 5835-00-936-8753
NSN 5950-01-242-2809
NSN 7035-01-300-1599
NSN 5975-00-521-8848
NSN 7035-00-991-6877
NSN 5935-00-079-1650
NSN 5996-00-564-6472
NSN 5975-00-170-3623
NSN 5996-00-222-4930
NSN 6620-01-042-2046
NSN 6620-00-990-3385
NSN 5895-01-320-1433