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 2925-00-684-2989
NSN 6685-01-124-4362
NSN 5920-00-988-7898
NSN 5990-01-084-0807
NSN 5935-01-351-6655
NSN 6220-01-110-7562
NSN 5999-00-729-7273
NSN 5835-01-359-2575
NSN 5895-00-896-0503
NSN 5910-01-137-8956
NSN 6650-00-549-5672
NSN 5905-01-536-7920