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 7035-01-500-3970
NSN 5965-00-781-3578
NSN 6685-00-456-8600
NSN 5996-00-153-9055
NSN 6130-00-541-8468
NSN 4140-00-517-7902
NSN 5975-01-512-7824
NSN 6145-00-070-9368
NSN 5925-00-087-2819
NSN 6240-00-194-7924
NSN 5950-00-851-1922
NSN 6650-00-287-5868