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 5945-01-519-8004
NSN 4140-01-351-3892
NSN 6620-01-543-3247
NSN 5985-01-398-0786
NSN 5910-01-055-3572
NSN 6620-00-082-1525
NSN 6240-00-258-2389
NSN 6645-01-115-4953
NSN 5965-01-460-4172
NSN 5960-00-280-8629
NSN 5930-01-338-0484
NSN 6130-01-209-1573