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 6150-00-617-1580
NSN 6610-00-131-2533
NSN 5920-01-401-5315
NSN 5985-01-323-7236
NSN 6145-01-468-6252
NSN 6220-01-413-4164
NSN 5930-00-224-0378
NSN 5990-01-344-9118
NSN 5975-01-340-6431
NSN 5960-00-275-0910
NSN 6610-01-196-6388
NSN 5915-01-435-0880