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 5990-01-565-2226
NSN 5999-01-160-7905
NSN 5915-01-557-9524
NSN 5996-01-500-2820
NSN 5996-00-733-5690
NSN 5999-00-262-5325
NSN 5985-01-415-6259
NSN 6620-01-437-0387
NSN 7035-00-205-1932
NSN 6685-00-491-3781
NSN 5945-01-128-7197
NSN 5965-01-236-9988