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 5960-01-649-1341
NSN 5985-01-027-0040
NSN 6610-01-469-6012
NSN 5990-01-651-0170
NSN 5985-01-099-6973
NSN 5930-00-114-2875
NSN 7035-00-166-0339
NSN 7035-00-529-3128
NSN 5996-01-547-2809
NSN 5996-00-196-7258
NSN 5930-00-545-3911
NSN 5960-01-526-3843