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 5960-00-189-6517
NSN 6135-00-377-9165
NSN 5905-01-235-4084
NSN 4140-01-658-4109
NSN 6150-01-163-2024
NSN 6620-00-585-5443
NSN 5950-01-536-0047
NSN 5920-01-195-7254
NSN 5910-01-574-9299
NSN 5910-01-487-6757
NSN 5855-01-518-5278
NSN 5895-00-398-0029