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 6645-00-145-6411
NSN 5990-00-181-2220
NSN 5975-00-500-0166
NSN 5915-01-470-6331
NSN 5990-00-254-4825
NSN 5920-01-146-4503
NSN 6320-01-270-1419
NSN 5998-01-377-3855
NSN 5905-01-151-7161
NSN 6685-00-999-8702
NSN 6685-01-018-2735
NSN 5960-01-478-9493