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 5960-01-458-6484
NSN 6685-01-501-6699
NSN 5990-01-529-7307
NSN 6145-00-836-0510
NSN 5945-01-519-5560
NSN 5895-01-549-9177
NSN 6135-01-294-2131
NSN 7035-01-172-6772
NSN 6650-01-371-7567
NSN 5855-01-415-9822
NSN 5996-01-033-1300
NSN 5945-01-166-5176