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United Titanium manufactures and inventories lock washers from #2 to 3” diameter. We also offer metric lock washers upon request. These washers are manufactured to the most recent ASME B18.21.1, IFI, or customer stated standards. Our inventory is home to thousands of these lock washers in any of our various materials alloy C-276, grade 2 titanium, grade 5 titanium, grade 7 titanium and zirconium 702.
| A | B | T | W | BW | |||
| NOMINAL WASHER SIZE |
INSIDE DIAMETER | OUTSIDE DIAMETER |
MEAN SECTION THICKNESS (To + Ti)/2 |
SECTION WIDTH |
BREARING WIDTH |
||
| MAX | MIN | MAX | MIN | MIN | MIN | ||
| No. 2 | 0.086 | 0.094 | 0.088 | 0.172 | 0.020 | 0.035 | 0.024 |
| No. 3 | 0.099 | 0.107 | 0.101 | 0.195 | 0.025 | 0.040 | 0.028 |
| No. 4 | 0.112 | 0.120 | 0.114 | 0.209 | 0.025 | 0.040 | 0.028 |
| No. 5 | 0.125 | 0.133 | 0.127 | 0.236 | 0.031 | 0.047 | 0.033 |
| No. 6 | 0.138 | 0.148 | 0.141 | 0.250 | 0.031 | 0.047 | 0.033 |
| No. 8 | 0.164 | 0.174 | 0.167 | 0.293 | 0.040 | 0.055 | 0.038 |
| No. 10 | 0.190 | 0.200 | 0.193 | 0.334 | 0.047 | 0.062 | 0.043 |
| No. 12 | 0.216 | 0.227 | 0.220 | 0.377 | 0.056 | 0.070 | 0.049 |
| 1/4 | 0.250 | 0.260 | 0.252 | 0.487 | 0.062 | 0.109 | 0.076 |
| 5/16 | 0.3125 | 0.322 | 0.314 | 0.583 | 0.078 | 0.125 | 0.087 |
| 3/8 | 0.375 | 0.385 | 0.377 | 0.680 | 0.094 | 0.141 | 0.099 |
| 7/16 | 0.4375 | 0.450 | 0.440 | 0.776 | 0.109 | 0.156 | 0.109 |
| 1/2 | 0.500 | 0.512 | 0.502 | 0.869 | 0.125 | 0.171 | 0.120 |
| 9/16 | 0.5625 | 0.574 | 0.564 | 0.965 | 0.141 | 0.188 | 0.132 |
| 5/8 | 0.625 | 0.641 | 0.628 | 1.073 | 0.156 | 0.203 | 0.142 |
| 11/16 | 0.6875 | 0.704 | 0.691 | 1.170 | 0.172 | 0.219 | 0.153 |
| 3/4 | 0.750 | 0.766 | 0.753 | 1.265 | 0.188 | 0.234 | 0.164 |
| 13/16 | 0.8125 | 0.832 | 0.816 | 1.363 | 0.203 | 0.250 | 0.175 |
| 7/8 | 0.875 | 0.894 | 0.878 | 1.459 | 0.219 | 0.266 | 0.186 |
| 15/16 | 0.9375 | 0.958 | 0.941 | 1.556 | 0.234 | 0.281 | 0.197 |
| 1 | 1.000 | 1.024 | 1.003 | 1.656 | 0.250 | 0.297 | 0.208 |
| 1-1/16 | 1.0625 | 1.087 | 1.066 | 1.751 | 0.266 | 0.312 | 0.218 |
| 1-1/8 | 1.125 | 1.153 | 1.129 | 1.847 | 0.281 | 0.328 | 0.230 |
| 1-3/16 | 1.1875 | 1.217 | 1.192 | 1.943 | 0.297 | 0.344 | 0.241 |
| 1-1/4 | 1.250 | 2.280 | 1.254 | 2.036 | 0.312 | 0.359 | 0.251 |
| 1-5/16 | 1.3125 | 1.344 | 1.317 | 2.133 | 0.328 | 0.375 | 0.262 |
| 1-3/8 | 1.375 | 1.408 | 1.379 | 2.219 | 0.344 | 0.391 | 0.274 |
| 1-7/16 | 1.4375 | 1.472 | 1.442 | 2.324 | 0.359 | 0.406 | 0.284 |
| 1-1/2 | 1.500 | 1.534 | 1.504 | 2.419 | 0.375 | 0.422 | 0.295 |
| 1-5/8 | 1.625 | 1.663 | 1.633 | 2.553 | 0.389 | 0.424 | 0.297 |
| 1-3/4 | 1.750 | 1.789 | 1.758 | 2.679 | 0.389 | 0.424 | 0.297 |
| 1-7/8 | 1.875 | 1.914 | 1.883 | 2.811 | 0.422 | 0.427 | 0.299 |
| 2 | 2.000 | 2.039 | 2.008 | 2.936 | 0.422 | 0.427 | 0.299 |
| 2-1/4 | 2.250 | 2.293 | 2.262 | 3.221 | 0.440 | 0.442 | 0.309 |
| 2-1/2 | 2.500 | 2.543 | 2.512 | 2.471 | 0.440 | 0.442 | 0.309 |
| TITANIUM | ZIRCONIUM | ALLOY | TANTALUM | |
| CP-TI (GR. 2) | 702 | 600 | UT35N | |
| 6AL-4V (GR. 5) | 705 | 625 | 556 | |
| TI-PD (GR. 7) | 825 | 718 | ||
| TI CODE 12 (GR. 12) | C276 | AL6XN | ||
| 6AL-4V ELI (GR. 23) | C22 | 2205 | ||
| B2 | 686 | |||
| B3 | 255 | |||
Our lock washer dimensions are listed in inches, but we also offer metric lock washers upon request. If you don't see the size you need, you can request a custom quote.