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 5925-01-338-7939
NSN 5999-00-868-1853
NSN 6220-01-491-5863
NSN 5960-01-373-7317
NSN 2925-00-816-8765
NSN 5985-01-448-0100
NSN 5910-01-367-2738
NSN 6150-01-267-9340
NSN 6685-00-131-2200
NSN 6145-01-059-9907
NSN 5925-01-417-0807
NSN 5930-00-097-4266