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 4140-01-074-0931
NSN 5925-01-056-5127
NSN 5925-01-540-3872
NSN 5965-01-065-5544
NSN 6150-00-512-5196
NSN 6150-01-183-0750
NSN 5950-01-306-2265
NSN 5950-00-644-2657
NSN 7035-01-214-5171
NSN 6650-01-487-1342
NSN 6130-01-222-0475
NSN 6645-01-627-4123