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 4140-01-214-6380
NSN 5905-01-394-3728
NSN 6645-01-407-0204
NSN 6650-00-778-2949
NSN 6620-01-111-5847
NSN 5920-00-583-8674
NSN 5925-01-014-6602
NSN 5945-01-297-0814
NSN 5999-00-416-6638
NSN 5990-00-438-0612
NSN 6145-01-014-5209
NSN 5999-00-421-6051