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 4140-01-530-5973
NSN 6220-01-040-1406
NSN 5895-01-333-2097
NSN 6145-01-567-8789
NSN 6110-00-129-8714
NSN 5920-01-519-2399
NSN 5905-01-472-2366
NSN 5950-00-932-4260
NSN 5990-01-025-7466
NSN 6645-01-317-6071
NSN 6130-00-118-0656
NSN 6320-01-373-5287