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 6320-01-246-4390
NSN 5925-01-589-8222
NSN 5999-00-529-0157
NSN 5915-01-534-8819
NSN 6650-00-511-8673
NSN 6220-01-562-3819
NSN 6645-00-421-5287
NSN 5925-01-304-0871
NSN 6645-00-585-3809
NSN 5999-01-127-2465
NSN 6320-01-116-9866
NSN 5996-01-590-5109