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.)
Classification: Nuts of iron or steel
NSN 4140-01-620-0921
NSN 5930-01-066-9873
NSN 5835-01-187-8986
NSN 6645-00-415-0884
NSN 6685-01-122-4074
NSN 6220-01-304-0855
NSN 6110-01-212-1371
NSN 6650-01-534-3587
NSN 6645-00-539-1705
NSN 6145-01-617-1863
NSN 6320-01-006-6138
NSN 5835-00-880-6477