ASME B18.21.1 TABLE 3 Standard Dimensioni per Helical spring-lock washers, inch sizes
Rondelle elastiche spaccate
Disegni dimensionali e diagrammi tecnici
Dimensioni chiave e parametri tecnici
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Dimensions in inches: source ASME B18.21.1 -2009-Table 3 Extra-duty series
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| Nominal washer size |
A max
|
A min |
B max
|
T
mean section thickness
(t1+t)/2
|
W min
|
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No.2 (0.086)
|
0.094 | 0.088 | 0.208 | 0.027 | 0.053 | ||
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No.3 (0.099)
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0.107 | 0.101 | 0.239 | 0.034 | 0.062 | ||
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No.4 (0.112)
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0.120 | 0.114 | 0.253 | 0.034 | 0.062 | ||
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No.5 (0.125)
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0.133 | 0.127 | 0.300 | 0.045 | 0.079 | ||
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No.6 (0.138)
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0.148 | 0.141 | 0.314 | 0.045 | 0.079 | ||
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No.8 (0.164)
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0.174 | 0.167 | 0.375 | 0.057 | 0.096 | ||
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No.10 (0.190)
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0.2 | 0.193 | 0.434 | 0.068 | 0.112 | ||
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No.12 (0.216)
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0.227 | 0.220 | 0.497 | 0.080 | 0.130 | ||
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1/4 - (0.250)
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0.26 | 0.252 | 0.533 | 0.084 | 0.132 | ||
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5/16 - (0.3125)
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0.322 | 0.314 | 0.619 | 0.108 | 0.143 | ||
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3/8 - (0.375)
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0.385 | 0.377 | 0.738 | 0.123 | 0.170 | ||
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7/16 -(0.4375)
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0.45 | 0.44 | 0.836 | 0.143 | 0.186 | ||
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1/2 - (0.5)
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0.512 | 0.502 | 0.935 | 0.162 | 0.204 | ||
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9/16 - (0.5625)
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0.574 | 0.564 | 1.035 | 0.182 | 0.223 | ||
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5/8 - (0.625)
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0.641 | 0.628 | 1.151 | 0.202 | 0.242 | ||
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11/16 - (0.6875)
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0.704 | 0.691 | 1.252 | 0.221 | 0.260 | ||
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3/4 - (0.75)
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0.766 | 0.753 | 1.355 | 0.241 | 0.279 | ||
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13/16 -(0.8125)
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0.832 | 0.816 | 1.458 | 0.261 | 0.298 | ||
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7/8 - (0.875)
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0.894 | 0.878 | 1.751 | 0.285 | 0.322 | ||
| 15/16 (0.9375) | 0.958 | 0.941 | 1.684 | 0.308 | 0.345 | ||
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1 - (1)
|
1.024
|
1.003 |
1.794
|
0.330
|
0.366
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| 1-1/16 (1.0625) | 1.087 | 1.066 | 1.905 | 0.352 | 0.389 | ||
| 1-1/8 (1.125) | 1.153 | 1.129 | 2.013 | 0.375 | 0.411 | ||
| 1-3/16 (1.875) | 1.217 | 1.192 | 2.107 | 0.396 | 0.431 | ||
| 1- 1/4 (1.25) | 1.280 | 1.254 | 2.222 | 0.417 | 0.452 | ||
| 1 - 5/16 (1.3125) | 1.344 | 1.317 | 2.327 | 0.438 | 0.472 | ||
| 1 - 3/8 (1.375) | 1.408 | 1.379 | 2.429 | 0.458 |
0.491 |
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| 1 - 7/16 (1.4375) | 1.472 | 1.442 | 2.530 | 0.478 | 0.509 | ||
| 1 - 1/2 (1.5) | 1.534 | 1.504 | 2.627 | 0.496 | 0.526 | ||
| 1 - 5/8 (1.625) | 1.663 | 1.663 | 2.784 | 0.496 | 0.526 | ||
| 1 - 3/4 (1.75) | 1.798 | 1.758 | 2.902 | 0.526 | 0.532 | ||
| 1 - 7/8 (1.875) | 1.914 | 1.883 | 3.027 | 0.526 | 0.532 | ||
| 2 (2) | 2.039 | 2.008 | 3.156 | 0.526 | 0.532 | ||