Flanged hex nut, thread size: 3/8 inch - 16, diameter , nut size: 11/16 inch , 1/2 inch high, flange dia: 7/8 inch , flange thickness: 1/8 inch, thread class: 2b
No other part numbers with same form, fit, and function found.
A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.
Classification: Nuts of iron or steel
NSN 6610-01-041-1880
NSN 6145-01-116-8137
NSN 6610-01-632-8561
NSN 5855-01-243-2355
NSN 6650-01-422-3395
NSN 5965-01-463-6813
NSN 6645-01-154-9647
NSN 6150-00-301-7308
NSN 5990-00-983-1813
NSN 6150-00-605-4721
NSN 5930-00-223-3061
NSN 5985-00-275-2830