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 6105-01-461-8426
NSN 5895-01-377-4613
NSN 5990-01-378-7349
NSN 5985-00-513-3420
NSN 4140-00-311-6329
NSN 5975-00-128-3222
NSN 6220-01-608-5122
NSN 6220-00-702-6358
NSN 5985-01-268-0945
NSN 6110-01-252-8516
NSN 5920-01-481-4454
NSN 7035-01-391-7470