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 6610-00-597-5671
NSN 6620-01-216-4901
NSN 2925-01-620-9673
NSN 5910-00-683-3766
NSN 5999-01-025-6686
NSN 6620-00-932-6508
NSN 5935-01-288-1252
NSN 5895-01-328-0017
NSN 5910-00-125-8779
NSN 6610-01-359-0008
NSN 5996-01-552-0480
NSN 5910-01-607-0879