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 6645-01-297-2081
NSN 5920-01-303-6841
NSN 5990-00-636-4218
NSN 5855-01-311-6666
NSN 5985-00-106-7143
NSN 5855-01-363-1143
NSN 5905-01-601-3653
NSN 6645-00-248-5434
NSN 2925-00-480-9068
NSN 6105-01-332-2319
NSN 5915-00-802-8789
NSN 6685-01-386-8521