Description
This washer is classified as a USS (United States Standard) Type flat washer. USS washers generally have a larger outside diameter compared to SAE washers and has a nominal Inside Diameter of 9/16".
|
Size |
Inside Diameter |
Outside Diameter |
Thickness |
|||||
|
Nominal |
Max |
Min |
Nominal |
Max |
Min |
Max |
Min | |
| 3/16" |
1/4" |
0.265 |
0.245 |
9/16" |
0.577 |
0.557 |
.065 |
.036 |
| 1/4" |
5/16" |
0.327 |
0.307 |
3/4" |
0.749 |
0.727 |
.080 |
.051 |
| 5/16" |
3/8" |
0.390 |
0.370 |
7/8" |
0.905 |
0.868 |
.104 |
.064 |
| 3/8" |
7/16" |
0.453 |
0.433 |
1" |
1.030 |
0.993 |
.104 |
.064 |
| 7/16" |
1/2" |
0.515 |
0.495 |
1 1/4" |
1.280 |
1.243 |
.104 |
.064 |
| 1/2" |
9/16" |
0.577 |
0.577 |
1 3/8" |
1.405 |
4.368 |
.132 |
.086 |
| 9/16" |
5/8" |
0.640 |
0.620 |
1 1/2" |
1.499 |
1.462 |
.132 |
.086 |