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 5975-01-632-3429
NSN 6240-00-878-8036
NSN 5935-01-357-9633
NSN 5985-00-100-0140
NSN 5990-01-193-0487
NSN 5996-00-383-6173
NSN 5985-01-027-8231
NSN 5996-00-763-6245
NSN 5985-00-617-9043
NSN 5925-00-969-1450
NSN 5935-01-431-5756
NSN 5835-01-414-3258