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 6620-00-394-1812
NSN 5915-00-949-7206
NSN 6650-00-216-6365
NSN 5975-01-255-7657
NSN 5960-00-702-2005
NSN 4140-01-443-2391
NSN 6645-01-299-3198
NSN 6145-01-521-4564
NSN 6610-01-633-8931
NSN 5950-01-362-9307
NSN 5985-00-162-9293
NSN 5925-01-352-3349