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 5999-00-821-4394
NSN 4140-00-791-0500
NSN 5999-01-217-3813
NSN 6650-01-368-3286
NSN 6145-01-267-6770
NSN 6620-01-607-5738
NSN 6110-01-033-4076
NSN 5855-01-067-8841
NSN 6610-01-424-6946
NSN 5910-01-085-6434
NSN 5905-00-226-0400
NSN 6610-01-238-8712