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Basic Part Information 
Nominal Inside Diameter Outside Width Thickness WCL
Washer A Diameter C D Product Number
Diameter Min. Max. B Max. Min. Min. Steel Stainless Bronze
0 0.062 0.071 0.123 0.022 0.022 #0-REG-C/S #0-REG-SS #0-REG-BRZ
1 0.075 0.084 0.162 0.035 0.020 #1-REG-C/S #1-REG-SS #1-REG-BRZ
2 0.088 0.094 0.172 0.035 0.020 #2-REG-C/S #2-REG-SS #2-REG-BRZ
3 0.101 0.107 0.195 0.040 0.025 #3-REG-C/S #3-REG-SS #3-REG-BRZ
4 0.114 0.120 0.209 0.040 0.025 #4-REG-C/S #4-REG-SS #$-REG-BRZ
5 0.127 0.133 0.236 0.047 0.031 #5-REG-C/S #5-REG-SS #5-REG-BRZ
6 0.141 0.148 0.250 0.047 0.031 #6-REG-C/S #6-REG-SS #6-REG-BRZ
8 0.167 0.174 0.293 0.055 0.040 #8-REG-C/S #8-REG-SS #8-REG-BRZ
10 0.193 0.200 0.334 0.062 0.047 #10-REG-C/S #10-REG-SS #10-REG-BRZ
12 0.220 0.227 0.377 0.070 0.056 #12-REG-C/S #12-REG-SS #12-REG-BRZ
1/4 0.252 0.260 0.487 0.109 0.062 1/4-REG-C/S 1/4-REG-SS 1/4-REG-BRZ
5/16 0.314 0.322 0.583 0.125 0.078 5/16-REG-C/S 5/16-REG-SS 5/16-REG-BRZ
3/8 0.377 0.385 0.68 0.141 0.094 3/8-REG-C/S 3/8-REG-SS 3/8-REG-BRZ
7/16 0.440 0.450 0.776 0.156 0.109 7/16-REG-C/S 7/16-REG-SS 7/16-REG-BRZ
1/2 0.502 0.512 0.869 0.171 0.125 1/2-REG-C/S 1/2-REG-SS 1/2-REG-BRZ
9/16 0.564 0.574 0.965 0.188 0.141 9/16-REG-C/S 9/16-REG-SS 9/16-REG-BRZ
5/8 0.628 0.641 1.073 0.203 0.156 5/8-REG-C/S 5/8-REG-SS 5/8-REG-BRZ
11/16 0.691 0.704 0.170 0.219 0.172 11/16-REG-C/S 11/16-REG-SS 11/16-REG-BRZ
3/4 0.753 0.766 1.265 0.234 0.188 3/4-REG-C/S 3/4-REG-SS 3/4-REG-BRZ
7/8 0.878 0.894 1.459 0.266 0.219 7/8-REG-C/S 7/8-REG-SS 7/8-REG-BRZ
1 1.003 1.024 1.656 0.297 0.250 1-REG-C/S 1-REG-SS 1-REG-BRZ
1 1/8 1.129 1.153 1.847 0.328 0.281 1-1/8-REG-C/S 1-1/8-REG-SS 1-1/8-REG-BRZ
1 1/4 1.254 1.280 2.036 0.359 0.312 1-1/4-REG-C/S 1-1/4-REG-SS 1-1/4-REG-BRZ
1 3/8 1.397 1.408 2.219 0.391 0.344 1-3/8-REG-C/S 1-3/8-REG-SS 1-3/8-REG-BRZ
1 7/16 1.442 1.472 2.324 0.406 0.359 1-7/16-REG-C/S 1-7/16-REG-SS 1-7/16-REG-BRZ
1 1/2 1.504 1.534 2.419 0.422 0.375 1-1/2-REG-C/S 1-1/2-REG-SS 1-1/2-REG-BRZ
1 5/8 1.633 1.663 2.553 0.424 0.389 1-5/8-REG-C/S 1-5/8-REG-SS 1-5/8-REG-BRZ
1 3/4 1.758 1.789 2.679 0.424 0.389 1-3/4-REG-C/S 1-3/4-REG-SS 1-3/4-REG-BRZ
1 7/8 1.883 1.914 2.811 0.427 0.422 1-7/8-REG-C/S 1-7/8-REG-SS 1-7/8-REG-BRZ
2 2.008 2.039 2.936 0.427 0.422 2-REG-C/S 2-REG-SS 2-REG-BRZ
2 1/4 2.262 2.293 3.221 0.442 0.440 2-1/4-REG-C/S 2-1/4-REG-SS 2-1/4-REG-BRZ
2 1/2 2.512 2.543 3.471 0.442 0.440 2-1/2-REG-C/S 2-1/2-REG-SS 2-1/2-REG-BRZ
2 3/4 2.762 2.793 3.824 0.491 0.458 2-3/4-REG-C/S 2-3/4-REG-SS 2-3/4-REG-BRZ
3 3.012 3.043 4.074 0.491 0.458 3-REG-C/S 3-REG-SS 3-REG-BRZ

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WCL Company specializes in reliable low-cost, engineered high-performance split sring lock washers, fasteners, fittings, plastic components, washers, nuts, and a wide array of fastener components. WCL has 50 years of experience with all types of standard and engineered fasteners, and provides a comprehensive line of fastener products for sale from some of the world's leading manufacturers.
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