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 5855-00-455-6070
NSN 6220-01-537-0129
NSN 6135-01-010-0891
NSN 5996-01-538-2841
NSN 6150-01-418-4196
NSN 6685-01-642-4175
NSN 4140-01-382-3597
NSN 6220-01-128-0087
NSN 6685-01-201-7988
NSN 5905-00-186-3494
NSN 5910-01-106-3499
NSN 6105-01-494-3848