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
NSN 6650-01-560-0321
NSN 5905-01-461-5834
NSN 6685-00-198-9506
NSN 2925-01-123-5856
NSN 5998-01-585-9925
NSN 6645-01-366-5033
NSN 6610-01-426-5090
NSN 5910-01-131-2010
NSN 5965-00-309-4814
NSN 5905-01-092-4202
NSN 6685-01-283-7960