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 6650-00-266-6808
NSN 5990-01-296-8190
NSN 5996-00-732-2552
NSN 6145-01-372-3585
NSN 6145-00-663-6133
NSN 5915-01-026-5142
NSN 6150-01-211-6659
NSN 5990-01-485-0260
NSN 5835-01-608-4285
NSN 2925-01-196-6187
NSN 6620-01-426-0199
NSN 6135-01-618-8314