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 6320-01-648-5538
NSN 6220-01-311-8865
NSN 6645-01-111-9825
NSN 2925-01-314-5833
NSN 5965-00-577-6215
NSN 5920-01-073-3334
NSN 5975-00-644-4972
NSN 5965-01-089-8579
NSN 5915-00-799-7369
NSN 5975-00-976-5780
NSN 4140-01-463-2910
NSN 5999-00-028-2172