Square nut; heavy
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 5985-00-146-8537
NSN 6135-00-932-3136
NSN 6685-00-970-9110
NSN 6610-01-449-8906
NSN 5960-00-985-0262
NSN 5965-01-406-6320
NSN 6130-00-299-0395
NSN 5935-01-556-0543
NSN 5910-01-004-9985
NSN 5935-01-105-8224
NSN 6150-01-463-3113
NSN 6650-01-454-0684