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 5855-01-359-0373
NSN 6135-00-315-1187
NSN 5985-01-502-4639
NSN 5975-01-010-2953
NSN 5990-00-543-2755
NSN 5996-00-163-9551
NSN 6320-01-564-0893
NSN 4140-01-278-6709
NSN 5990-01-036-1631
NSN 5965-00-400-6228
NSN 6240-01-503-8717
NSN 5990-00-085-4299