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.)
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Turkey Classification: Nuts of iron or steel
NSN 5945-00-137-6257
NSN 5965-01-646-7498
NSN 6220-01-366-6747
NSN 6150-00-150-8838
NSN 5990-01-305-8121
NSN 5920-01-249-2708
NSN 6135-01-386-5709
NSN 5999-01-599-5222
NSN 5996-00-879-4360
NSN 6150-00-202-9150
NSN 7035-01-333-4203
NSN 6240-01-303-3171