Dimensions of Type A Plain Washers
Dimensions of Type A Plain Washers |
Normal Washer Size |
Series (1) |
A |
B |
C |
Inside Diameter |
Outside Diameter |
Thickness |
Basic |
Tolerance |
Basic |
Tolerance |
Plus |
Minus |
Plus |
Minus |
Basic |
Plus |
Minus |
1/4 (0.250) |
N |
0.281 |
0.015 |
0.005 |
0.625 |
0.015 |
0.007 |
0.065 |
0.080 |
0.051 |
1/4 (0.250) |
W |
0.312 |
0.015 |
0.005 |
0.734 (2) |
0.015 |
0.007 |
0.065 |
0.080 |
0.051 |
3/8 (0.375) |
N |
0.406 |
0.015 |
0.005 |
0.812 |
0.015 |
0.007 |
0.065 |
0.080 |
0.051 |
3/8 (0.375) |
W |
0.438 |
0.015 |
0.005 |
1.000 |
0.030 |
0.007 |
0.083 |
0.104 |
0.064 |
1/2 (0.500) |
N |
0.531 |
0.015 |
0.005 |
1.062 |
0.030 |
0.007 |
0.095 |
0.121 |
0.074 |
1/2 (0.500) |
W |
0.562 |
0.015 |
0.005 |
1.375 |
0.030 |
0.007 |
0.109 |
0.132 |
0.086 |
5/8 (0.625) |
N |
0.656 |
0.030 |
0.007 |
1.312 |
0.030 |
0.007 |
0.095 |
0.121 |
0.074 |
5/8 (0.625) |
W |
0.688 |
0.030 |
0.007 |
1.750 |
0.030 |
0.007 |
0.134 |
0.160 |
0.108 |
3/4 (0.750) |
N |
0.812 |
0.030 |
0.007 |
1.469 |
0.030 |
0.007 |
0.134 |
0.160 |
0.108 |
3/4 (0.750) |
W |
0.812 |
0.030 |
0.007 |
2.000 |
0.030 |
0.007 |
0.148 |
0.177 |
0.122 |
7/8 (0.875) |
N |
0.938 |
0.030 |
0.007 |
1.750 |
0.030 |
0.007 |
0.134 |
0.160 |
0.180 |
7/8 (0.875) |
W |
0.938 |
0.030 |
0.007 |
2.250 |
0.030 |
0.007 |
0.165 |
0.192 |
0.136 |
1 (1.000) |
N |
1.062 |
0.030 |
0.007 |
2.000 |
0.030 |
0.007 |
0.134 |
0.160 |
0.108 |
1 (1.000) |
W |
1.062 |
0.030 |
0.007 |
2.500 |
0.030 |
0.007 |
0.165 |
0.192 |
0.136 |
1-1/8 (1.125) |
N |
1.250 |
0.030 |
0.007 |
2.250 |
0.030 |
0.007 |
0.134 |
0.160 |
0.108 |
1-1/8 (1.125) |
W |
1.250 |
0.030 |
0.007 |
2.750 |
0.030 |
0.007 |
0.165 |
0.192 |
0.136 |
1-1/4 (1.250) |
N |
1.375 |
0.030 |
0.007 |
2.500 |
0.030 |
0.007 |
0.165 |
0.192 |
0.136 |
1-1/4 (1.250) |
W |
1.375 |
0.030 |
0.007 |
3.000 |
0.030 |
0.007 |
0.165 |
0.192 |
0.136 |
1-3/8 (1.375) |
N |
1.500 |
0.030 |
0.007 |
2.750 |
0.030 |
0.007 |
0.165 |
0.192 |
0.136 |
1-3/8 (1.375) |
W |
1.500 |
0.045 |
0.010 |
3.250 |
0.045 |
0.010 |
0.180 |
0.213 |
0.153 |
1-1/2 (1.500) |
N |
1.625 |
0.030 |
0.007 |
3.000 |
0.030 |
0.007 |
0.165 |
0.192 |
0.136 |
1-1/2 (1.500) |
W |
1.625 |
0.045 |
0.010 |
3.500 |
0.045 |
0.010 |
0.180 |
0.213 |
0.153 |
1-5/8 (1.625) |
-- |
1.750 |
0.045 |
0.010 |
3.750 |
0.045 |
0.010 |
0.180 |
0.213 |
0.153 |
1-3/4(1.750) |
-- |
1.875 |
0.045 |
0.010 |
4.000 |
0.045 |
0.010 |
0.180 |
0.213 |
0.153 |
1-7/8 (1.875) |
-- |
2.000 |
0.045 |
0.010 |
4.250 |
0.045 |
0.010 |
0.180 |
0.213 |
0.153 |
2 (2.000) |
-- |
2.125 |
0.045 |
0.010 |
4.500 |
0.045 |
0.010 |
0.180 |
0.213 |
0.153 |
2-1/4 (2.250) |
-- |
2.375 |
0.045 |
0.010 |
4.750 |
0.045 |
0.010 |
0.220 |
0.278 |
0.193 |
2-1/2 (2.500) |
-- |
2.625 |
0.045 |
0.010 |
5.000 |
0.045 |
0.010 |
0.238 |
0.280 |
0.210 |
2-3/4 (2.750) |
-- |
2.875 |
0.065 |
0.010 |
5.250 |
0.065 |
0.010 |
0.259 |
0.310 |
0.228 |
3 (3.000) |
-- |
3.125 |
0.065 |
0.010 |
5.500 |
0.065 |
0.010 |
0.284 |
0.327 |
0.249 |