A nut having opposite convex spherical bearing surfaces and 6 flat sides.
Classification: Nuts of iron or steel
NSN 6620-00-861-3828
NSN 5835-01-084-5742
NSN 5925-00-083-8486
NSN 4140-00-113-8215
NSN 5960-00-285-1001
NSN 6220-01-147-9180
NSN 5945-01-569-3124
NSN 5920-01-216-8022
NSN 6650-00-255-2633
NSN 5960-00-204-7506
NSN 6145-00-249-8781
NSN 4140-00-731-8037