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 7035-00-371-7749
NSN 6135-01-512-8740
NSN 5996-01-391-4746
NSN 5975-01-487-3748
NSN 7035-00-349-8571
NSN 6220-01-477-4412
NSN 6610-01-167-8747
NSN 5895-00-827-2095
NSN 5965-00-605-8239
NSN 6145-01-328-4596
NSN 5965-00-351-3575
NSN 6685-01-420-4575