Concave is 0.4375 radius, height unknown.
No other part numbers with same form, fit, and function found.
A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is raised to form a curved or spherical contour. See also washer (1), concave. Excludes bearing, washer thrust.
Classification: Copper washers including spring washers not threaded
NSN 5855-01-284-0589
NSN 6645-01-140-4286
NSN 5975-01-249-9846
NSN 5950-00-678-6711
NSN 6145-01-424-0354
NSN 6685-01-211-9084
NSN 5960-01-169-1372
NSN 6240-01-589-7218
NSN 6130-01-257-6479
NSN 5925-00-588-2519
NSN 5975-01-271-6143
NSN 5930-01-629-4793