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 5950-01-256-1699
NSN 5975-00-216-4848
NSN 5950-01-451-4040
NSN 5996-00-999-3891
NSN 6650-01-272-9746
NSN 5990-00-768-9341
NSN 6620-01-502-5083
NSN 6320-01-538-4782
NSN 5930-01-288-5170
NSN 5905-01-176-0613
NSN 5996-01-407-7374
NSN 6105-01-574-7711