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 5960-01-273-7044
NSN 5835-00-632-8621
NSN 6150-01-304-7615
NSN 6650-00-021-9555
NSN 7035-01-216-4806
NSN 5990-00-912-9166
NSN 5960-00-082-0493
NSN 5996-00-908-7932
NSN 5950-01-026-2282
NSN 6685-01-559-1638
NSN 6645-01-361-8947
NSN 5910-01-154-4763