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 4140-01-007-8902
NSN 5950-01-572-3223
NSN 6240-01-597-4870
NSN 4140-01-363-2258
NSN 6145-01-379-6140
NSN 5915-00-645-7600
NSN 6645-00-932-1464
NSN 6645-01-014-0793
NSN 6150-00-759-1764
NSN 5965-01-533-7687
NSN 6220-01-425-5078
NSN 7035-00-299-7150