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.)
NSN 5960-01-376-3880
NSN 5930-00-986-0755
NSN 5920-01-476-8112
NSN 5920-00-007-5165
NSN 2925-01-470-5534
NSN 6610-00-944-2925
NSN 5915-01-253-5000
NSN 5905-01-345-2422
NSN 5998-01-025-9799
NSN 7035-01-056-5350
NSN 6135-01-495-0933
NSN 5996-00-201-8861