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 6145-01-431-2262
NSN 5975-00-088-9947
NSN 5950-00-827-6462
NSN 6220-00-575-4466
NSN 5930-00-573-8876
NSN 5965-01-107-0950
NSN 5905-01-030-6731
NSN 6240-01-269-8454
NSN 5905-01-297-9400
NSN 6130-00-284-1629
NSN 5910-00-833-9191
NSN 5910-01-196-9389