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 6620-00-500-0041
NSN 5935-01-400-5949
NSN 6220-01-267-3250
NSN 6620-01-504-5756
NSN 5920-01-648-5188
NSN 5990-01-459-9533
NSN 6105-01-174-6697
NSN 6110-00-571-7654
NSN 6135-01-472-9011
NSN 6645-01-577-5891
NSN 6320-01-562-1599
NSN 6145-01-182-3448