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 5996-01-529-0170
NSN 6150-00-434-1913
NSN 5895-01-423-4069
NSN 5999-01-467-0999
NSN 5835-01-170-0271
NSN 5960-00-467-7400
NSN 7035-01-285-2240
NSN 6150-00-242-9439
NSN 6610-01-367-1640
NSN 5855-00-688-9954
NSN 5855-01-177-4751
NSN 5925-01-246-8700