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 5915-01-013-0243
NSN 5910-01-356-1610
NSN 5895-01-044-5332
NSN 6645-01-529-8822
NSN 7035-01-250-4268
NSN 5855-01-042-7990
NSN 5925-00-011-7011
NSN 5999-00-061-3168
NSN 2925-00-211-4761
NSN 5985-01-013-4600
NSN 6130-01-086-0792
NSN 5930-00-246-5046