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.)
NSN 5915-01-240-6097
NSN 7035-01-024-9511
NSN 7035-01-482-1356
NSN 6320-01-089-9086
NSN 5925-01-155-1595
NSN 5990-01-160-6978
NSN 6685-01-445-8782
NSN 4140-00-004-4544
NSN 5950-01-204-0248
NSN 5950-00-827-3569
NSN 5975-01-578-5495
NSN 6135-00-896-3187