ANSI/ASME B 18.21.1 Helical Spring Lock Washer
ANSI/ASME B 18.21.1 Helical Spring Lock Washer, made of spring steel, black oxide, size D16-D100 from professional Retaining Rings manufacturer in China.
ANSI/ASME B 18.21.1 Helical Spring Lock Washer; Spring Washer, Split Spring Lock Washer
Material: Spring Steel, black oxide
Size: D16-D100
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ANSI/ASME B 18.21.1 Helical Spring Lock Washer specification:
| Size | d max | d min | dc max | h min | n min | n1 min |
| 4# | 0.12 | 0.114 | 0.173 | 0.022 | 0.022 | 0.015 |
| 5# | 0.133 | 0.127 | 0.202 | 0.03 | 0.03 | 0.021 |
| 6# | 0.148 | 0.141 | 0.216 | 0.03 | 0.03 | 0.021 |
| 8# | 0.174 | 0.167 | 0.267 | 0.047 | 0.042 | 0.029 |
| 10# | 0.2 | 0.193 | 0.294 | 0.047 | 0.042 | 0.029 |
| 1/4″ | 0.26 | 0.252 | 0.363 | 0.078 | 0.047 | 0.033 |
| 5/16″ | 0.322 | 0.314 | 0.457 | 0.093 | 0.062 | 0.043 |
| 3/8″ | 0.385 | 0.377 | 0.55 | 0.125 | 0.076 | 0.053 |
| 7/16″ | 0.45 | 0.44 | 0.644 | 0.14 | 0.09 | 0.063 |
| 1/2″ | 0.512 | 0.502 | 0.733 | 0.172 | 0.103 | 0.072 |
| 5/8″ | 0.641 | 0.628 | 0.917 | 0.203 | 0.125 | 0.087 |
| 3/4″ | 0.766 | 0.753 | 1.105 | 0.218 | 0.154 | 0.108 |
| 7/8″ | 0.894 | 0.878 | 1.291 | 0.234 | 0.182 | 0.127 |
| 1″ | 1.024 | 1.003 | 1.478 | 0.25 | 0.208 | 0.146 |
| 1 1/8″ | 1.153 | 1.129 | 1.663 | 0.313 | 0.236 | 0.165 |
| 1 1/4″ | 1.28 | 1.254 | 1.79 | 0.313 | 0.236 | 0.165 |
| 1 3/8″ | 1.408 | 1.379 | 2.031 | 0.375 | 0.292 | 0.204 |
| 1 1/2″ | 1.534 | 1.504 | 2.159 | 0.375 | 0.292 | 0.204 |
| 1 3/4″ | 1.789 | 1.758 | 2.596 | 0.469 | 0.383 | 0.268 |
| 2″ | 2.039 | 2.008 | 2.846 | 0.469 | 0.383 | 0.268 |
| 2 1/4″ | 2.293 | 2.262 | 3.345 | 0.508 | 0.508 | 0.356 |
| 2 1/2″ | 2.543 | 2.512 | 3.595 | 0.508 | 0.508 | 0.356 |
| 2 3/4″ | 2.793 | 2.762 | 4.095 | 0.633 | 0.633 | 0.443 |
| 3″ | 3.043 | 3.012 | 4.345 | 0.633 | 0.633 | 0.443 |
