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 5990-01-173-9531
NSN 4140-00-861-0527
NSN 4140-00-119-5855
NSN 6135-01-131-7064
NSN 6220-00-233-7436
NSN 6130-00-501-8586
NSN 6145-00-757-9479
NSN 5945-01-470-3680
NSN 5965-01-394-1542
NSN 5990-00-011-2994
NSN 5975-00-761-5602
NSN 5895-00-473-6056