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 4140-01-541-4286
NSN 5965-01-099-8745
NSN 6130-01-553-4887
NSN 6240-01-275-9719
NSN 6110-01-063-3441
NSN 5905-00-755-5558
NSN 6220-00-326-9144
NSN 6645-00-960-6594
NSN 6130-00-149-1115
NSN 5855-01-413-8962
NSN 6610-01-442-3509
NSN 5835-01-515-6537