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 4140-01-418-5519
NSN 5905-01-264-5407
NSN 5965-01-440-9898
NSN 5950-01-504-2975
NSN 6130-01-308-7643
NSN 5950-01-378-7042
NSN 6610-01-041-0555
NSN 6150-01-623-2280
NSN 5905-01-396-5603
NSN 5855-00-688-9954
NSN 5855-01-079-8716
NSN 5990-00-306-0222