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.)
Classification: Nuts of iron or steel
NSN 5915-01-543-4604
NSN 5999-01-423-5250
NSN 6240-01-653-8496
NSN 5998-00-952-0609
NSN 6685-01-333-0806
NSN 6320-00-284-1524
NSN 6240-00-840-3647
NSN 4140-00-215-0313
NSN 5965-01-574-4938
NSN 5910-01-250-0832
NSN 6650-00-614-1711
NSN 6610-01-335-3185