ASME B18.21.1 Heavy Helical Spring Lock Washers
ASME B18.21.1 Heavy Helical Spring Lock Washers Dimensions (mm)
| Nominal Size | Inside Diameter, A | Maximum Outside Diameter, B | Minimum Mean Section Thickness (ti + to)/2, T | Minimum Section Width, W | Minimum Bearing Width, BW | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. | Min. | |||||||||||
| ASME B18.21.1 #2 (0.086) | 2.388 | 2.235 | 4.623 | 0.635 | 1.016 | 0.711 | ||||||
| ASME B18.21.1 #3 (0.099) | 2.718 | 2.565 | 5.309 | 0.787 | 1.194 | 0.838 | ||||||
| ASME B18.21.1 #4 (0.112) | 3.048 | 2.896 | 5.664 | 0.787 | 1.194 | 0.838 | ||||||
| ASME B18.21.1 #5 (0.125) | 3.378 | 3.226 | 6.401 | 1.016 | 1.397 | 0.965 | ||||||
| ASME B18.21.1 #6 (0.138) | 3.759 | 3.581 | 6.756 | 1.016 | 1.397 | 0.965 | ||||||
| ASME B18.21.1 #8 (0.164) | 4.42 | 4.242 | 7.798 | 1.194 | 1.575 | 1.092 | ||||||
| ASME B18.21.1 #10 (0.190) | 5.08 | 4.902 | 8.89 | 1.422 | 1.778 | 1.245 | ||||||
| ASME B18.21.1 #12 (0.216) | 5.766 | 5.588 | 9.931 | 1.6 | 1.956 | 1.372 | ||||||
| ASME B18.21.1 1⁄4 (0.250) | 6.604 | 6.401 | 12.421 | 1.956 | 2.794 | 1.956 | ||||||
| ASME B18.21.1 5⁄16 (0.3125) | 8.179 | 7.976 | 15.062 | 2.464 | 3.302 | 2.311 | ||||||
| ASME B18.21.1 3⁄8 (0.375) | 9.779 | 9.576 | 17.475 | 2.921 | 3.683 | 2.565 | ||||||
| ASME B18.21.1 7⁄16 (0.4375) | 11.43 | 11.176 | 19.914 | 3.378 | 4.064 | 2.845 | ||||||
| ASME B18.21.1 1⁄2 (0.500) | 13.005 | 12.751 | 22.327 | 3.835 | 4.47 | 3.124 | ||||||
| ASME B18.21.1 9⁄16 (0.5625) | 14.58 | 14.326 | 24.765 | 4.318 | 4.902 | 3.429 | ||||||
| ASME B18.21.1 5⁄8 (0.625) | 16.281 | 15.951 | 27.61 | 4.801 | 5.334 | 3.734 | ||||||
| ASME B18.21.1 11⁄16 (0.6875) | 17.882 | 17.551 | 30.124 | 5.258 | 5.766 | 4.039 | ||||||
| ASME B18.21.1 3⁄4 (0.750) | 19.456 | 19.126 | 32.639 | 5.74 | 6.198 | 4.343 | ||||||
| ASME B18.21.1 13⁄16 (0.8125) | 21.133 | 20.726 | 35.23 | 6.248 | 6.655 | 4.648 | ||||||
| ASME B18.21.1 7⁄8 (0.875) | 22.708 | 22.301 | 37.821 | 6.756 | 7.137 | 5.004 | ||||||
| ASME B18.21.1 15⁄16 (0.9375) | 24.333 | 23.901 | 40.386 | 7.214 | 7.569 | 5.309 | ||||||
| ASME B18.21.1 1 (1.000) | 26.01 | 25.476 | 43.18 | 7.772 | 8.103 | 5.664 | ||||||
| ASME B18.21.1 11⁄16 (1.0625) | 27.61 | 27.076 | 45.796 | 8.28 | 8.585 | 6.02 | ||||||
| ASME B18.21.1 11⁄8 (1.125) | 29.286 | 28.677 | 48.336 | 8.763 | 9.042 | 6.325 | ||||||
| ASME B18.21.1 13⁄16 (1.1875) | 30.912 | 30.277 | 50.825 | 9.246 | 9.474 | 6.629 | ||||||
| ASME B18.21.1 11⁄4 (1.250) | 32.512 | 31.852 | 53.442 | 9.754 | 9.982 | 6.985 | ||||||
| ASME B18.21.1 15⁄16 (1.3125) | 34.138 | 33.452 | 55.956 | 10.236 | 10.414 | 7.29 | ||||||
| ASME B18.21.1 13⁄8 (1.375) | 35.763 | 35.027 | 58.445 | 10.719 | 10.846 | 7.595 | ||||||
| ASME B18.21.1 17⁄16 (1.4375) | 37.389 | 36.627 | 60.858 | 11.176 | 11.227 | 7.849 | ||||||
| ASME B18.21.1 11⁄2 (1.500) | 38.964 | 38.202 | 63.271 | 11.633 | 11.633 | 8.153 | ||||||
| ASME B18.21.1 15⁄8 (1.625) | 42.24 | 41.478 | 68.428 | 11.633 | 12.471 | 8.738 | ||||||
| ASME B18.21.1 13⁄4 (1.750) | 45.441 | 44.653 | 71.628 | 11.633 | 12.471 | 8.738 | ||||||
| ASME B18.21.1 17⁄8 (1.875) | 48.616 | 47.828 | 74.803 | 11.633 | 12.471 | 8.738 | ||||||
| ASME B18.21.1 2 (2.000) | 51.791 | 51.003 | 79.858 | 12.598 | 13.36 | 9.347 | ||||||
| ASME B18.21.1 21⁄4 (2.250) | 58.242 | 57.455 | 86.309 | 12.598 | 13.36 | 9.347 | ||||||
| ASME B18.21.1 21⁄2 (2.500) | 64.592 | 63.805 | 92.659 | 12.598 | 13.36 | 9.347 | ||||||
| ASME B18.21.1 23⁄4 (2.750) | 70.942 | 70.155 | 99.314 | 13.36 | 13.513 | 9.449 | ||||||
| ASME B18.21.1 3 (3.000) | 77.292 | 76.505 | 105.664 | 13.36 | 13.513 | 9.449 | ||||||
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ASME B18.21.1 Heavy Helical Spring Lock Washers Dimensions (Inch)
| Nominal Size | Inside Diameter, A | Maximum Outside Diameter, B | Minimum Mean Section Thickness (ti + to)/2, T | Minimum Section Width, W | Minimum Bearing Width, BW | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max. | Min. | |||||||||||
| ASME B18.21.1 #2 (0.086) | 2.388 | 2.235 | 4.623 | 0.635 | 1.016 | 0.711 | ||||||
| ASME B18.21.1 #3 (0.099) | 2.718 | 2.565 | 5.309 | 0.787 | 1.194 | 0.838 | ||||||
| ASME B18.21.1 #4 (0.112) | 3.048 | 2.896 | 5.664 | 0.787 | 1.194 | 0.838 | ||||||
| ASME B18.21.1 #5 (0.125) | 3.378 | 3.226 | 6.401 | 1.016 | 1.397 | 0.965 | ||||||
| ASME B18.21.1 #6 (0.138) | 3.759 | 3.581 | 6.756 | 1.016 | 1.397 | 0.965 | ||||||
| ASME B18.21.1 #8 (0.164) | 4.42 | 4.242 | 7.798 | 1.194 | 1.575 | 1.092 | ||||||
| ASME B18.21.1 #10 (0.190) | 5.08 | 4.902 | 8.89 | 1.422 | 1.778 | 1.245 | ||||||
| ASME B18.21.1 #12 (0.216) | 5.766 | 5.588 | 9.931 | 1.6 | 1.956 | 1.372 | ||||||
| ASME B18.21.1 1⁄4 (0.250) | 6.604 | 6.401 | 12.421 | 1.956 | 2.794 | 1.956 | ||||||
| ASME B18.21.1 5⁄16 (0.3125) | 8.179 | 7.976 | 15.062 | 2.464 | 3.302 | 2.311 | ||||||
| ASME B18.21.1 3⁄8 (0.375) | 9.779 | 9.576 | 17.475 | 2.921 | 3.683 | 2.565 | ||||||
| ASME B18.21.1 7⁄16 (0.4375) | 11.43 | 11.176 | 19.914 | 3.378 | 4.064 | 2.845 | ||||||
| ASME B18.21.1 1⁄2 (0.500) | 13.005 | 12.751 | 22.327 | 3.835 | 4.47 | 3.124 | ||||||
| ASME B18.21.1 9⁄16 (0.5625) | 14.58 | 14.326 | 24.765 | 4.318 | 4.902 | 3.429 | ||||||
| ASME B18.21.1 5⁄8 (0.625) | 16.281 | 15.951 | 27.61 | 4.801 | 5.334 | 3.734 | ||||||
| ASME B18.21.1 11⁄16 (0.6875) | 17.882 | 17.551 | 30.124 | 5.258 | 5.766 | 4.039 | ||||||
| ASME B18.21.1 3⁄4 (0.750) | 19.456 | 19.126 | 32.639 | 5.74 | 6.198 | 4.343 | ||||||
| ASME B18.21.1 13⁄16 (0.8125) | 21.133 | 20.726 | 35.23 | 6.248 | 6.655 | 4.648 | ||||||
| ASME B18.21.1 7⁄8 (0.875) | 22.708 | 22.301 | 37.821 | 6.756 | 7.137 | 5.004 | ||||||
| ASME B18.21.1 15⁄16 (0.9375) | 24.333 | 23.901 | 40.386 | 7.214 | 7.569 | 5.309 | ||||||
| ASME B18.21.1 1 (1.000) | 26.01 | 25.476 | 43.18 | 7.772 | 8.103 | 5.664 | ||||||
| ASME B18.21.1 11⁄16 (1.0625) | 27.61 | 27.076 | 45.796 | 8.28 | 8.585 | 6.02 | ||||||
| ASME B18.21.1 11⁄8 (1.125) | 29.286 | 28.677 | 48.336 | 8.763 | 9.042 | 6.325 | ||||||
| ASME B18.21.1 13⁄16 (1.1875) | 30.912 | 30.277 | 50.825 | 9.246 | 9.474 | 6.629 | ||||||
| ASME B18.21.1 11⁄4 (1.250) | 32.512 | 31.852 | 53.442 | 9.754 | 9.982 | 6.985 | ||||||
| ASME B18.21.1 15⁄16 (1.3125) | 34.138 | 33.452 | 55.956 | 10.236 | 10.414 | 7.29 | ||||||
| ASME B18.21.1 13⁄8 (1.375) | 35.763 | 35.027 | 58.445 | 10.719 | 10.846 | 7.595 | ||||||
| ASME B18.21.1 17⁄16 (1.4375) | 37.389 | 36.627 | 60.858 | 11.176 | 11.227 | 7.849 | ||||||
| ASME B18.21.1 11⁄2 (1.500) | 38.964 | 38.202 | 63.271 | 11.633 | 11.633 | 8.153 | ||||||
| ASME B18.21.1 15⁄8 (1.625) | 42.24 | 41.478 | 68.428 | 11.633 | 12.471 | 8.738 | ||||||
| ASME B18.21.1 13⁄4 (1.750) | 45.441 | 44.653 | 71.628 | 11.633 | 12.471 | 8.738 | ||||||
| ASME B18.21.1 17⁄8 (1.875) | 48.616 | 47.828 | 74.803 | 11.633 | 12.471 | 8.738 | ||||||
| ASME B18.21.1 2 (2.000) | 51.791 | 51.003 | 79.858 | 12.598 | 13.36 | 9.347 | ||||||
| ASME B18.21.1 21⁄4 (2.250) | 58.242 | 57.455 | 86.309 | 12.598 | 13.36 | 9.347 | ||||||
| ASME B18.21.1 21⁄2 (2.500) | 64.592 | 63.805 | 92.659 | 12.598 | 13.36 | 9.347 | ||||||
| ASME B18.21.1 23⁄4 (2.750) | 70.942 | 70.155 | 99.314 | 13.36 | 13.513 | 9.449 | ||||||
| ASME B18.21.1 3 (3.000) | 77.292 | 76.505 | 105.664 | 13.36 | 13.513 | 9.449 | ||||||
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