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 5905-01-291-6313
NSN 5925-01-377-7989
NSN 6610-01-091-3740
NSN 5895-00-256-9166
NSN 5910-01-067-9403
NSN 5895-01-256-4009
NSN 6135-01-122-4448
NSN 5960-01-249-7617
NSN 4140-00-828-4181
NSN 6320-00-456-2092
NSN 6135-01-014-9755
NSN 6610-00-425-7684