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 5960-00-803-2977
NSN 5990-01-105-0260
NSN 5905-00-448-6558
NSN 5985-01-427-9852
NSN 5998-01-477-6958
NSN 5996-01-210-0280
NSN 6135-00-913-2062
NSN 6650-00-143-1889
NSN 6145-01-115-8258
NSN 5925-00-170-4090
NSN 4140-01-459-3136
NSN 6650-01-343-1708