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 6685-01-020-3482
NSN 6220-01-076-3695
NSN 5935-00-158-4706
NSN 6645-01-519-3007
NSN 6150-00-405-9802
NSN 5925-00-313-6049
NSN 5990-00-432-0649
NSN 6240-01-131-1154
NSN 5965-01-329-7890
NSN 5935-01-314-7370
NSN 6135-00-100-8890
NSN 5960-01-352-0451