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.)
Classification: Nuts of iron or steel
NSN 6645-01-656-5129
NSN 5950-00-887-5853
NSN 6610-01-288-6103
NSN 5855-01-594-2082
NSN 5945-00-764-8878
NSN 5996-01-528-7850
NSN 6145-01-525-8140
NSN 6220-01-351-1555
NSN 5920-00-736-0796
NSN 6130-01-215-9567
NSN 6110-01-415-9950
NSN 6620-01-503-2667