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 5996-01-025-5683
NSN 7035-01-478-5922
NSN 6650-01-431-8933
NSN 4140-01-451-4180
NSN 5998-01-447-2559
NSN 5925-01-079-6064
NSN 5985-00-807-9822
NSN 5990-00-465-4903
NSN 5945-00-132-6428
NSN 5915-01-571-3042
NSN 5910-01-361-8442
NSN 6220-01-443-0719