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 4140-00-144-6833
NSN 6685-00-729-6498
NSN 6130-01-555-8531
NSN 6650-00-958-7408
NSN 4140-01-277-2548
NSN 6150-01-439-2230
NSN 4140-01-458-2743
NSN 6620-01-060-6418
NSN 5930-00-403-4651
NSN 6130-01-599-9431
NSN 6645-00-641-3202
NSN 5930-00-928-4066