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 5945-01-618-8605
NSN 5950-00-529-0599
NSN 6130-00-156-7751
NSN 5895-01-454-8714
NSN 6645-00-208-0796
NSN 5920-01-167-9678
NSN 5835-01-394-3812
NSN 5930-00-740-9384
NSN 5960-01-207-4452
NSN 5945-01-371-3120
NSN 6240-01-310-5043
NSN 5920-01-576-8240