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 6650-01-119-4576
NSN 2925-00-660-8131
NSN 6105-01-394-5305
NSN 5945-01-510-9223
NSN 5996-01-394-7577
NSN 6650-01-145-5663
NSN 6685-00-813-5527
NSN 5930-00-079-9901
NSN 5930-01-095-6225
NSN 5950-01-512-2388
NSN 6320-01-176-8367
NSN 5835-01-524-4731