Countersunk 0.390 in. Min and 0.405 in. Max by 90 degrees near side
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.
NSN 6645-00-527-7258
NSN 5910-01-329-4536
NSN 5965-00-578-1438
NSN 5895-01-024-9287
NSN 6610-00-142-9678
NSN 6220-00-845-3051
NSN 6685-00-473-9574
NSN 4140-00-078-9357
NSN 5910-01-442-5014
NSN 6130-00-309-2388
NSN 6240-01-455-7331
NSN 5835-01-432-1277