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Unit:inch

Helical Spring Lock Washers

SAE J 489B (Table 2) - 1974

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美标SAE J489B (Table 2) - 1974 SAE489B 489 Helical Spring Lock Washers
Size
2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16 3/8 7/16 1/2 9/16 5/8
Nominal size
d max
min
dc Regular max
h ① Regular min
n Regular min
dc Heavy max
h ① Heavy min
n Heavy min
dc Extra-Duty max
h ① Extra-Duty min
n Extra-Duty min
dc Hi-Collar max
h ① Hi-Collar min
n Hi-Collar min
0.086 0.099 0.112 0.125 0.138 0.164 0.190 0.216 0.250 0.312 0.375 0.438 0.500 0.562 0.625
0.094 0.107 0.120 0.133 0.148 0.174 0.200 0.227 0.262 0.326 0.390 0.455 0.518 0.582 0.650
0.088 0.101 0.114 0.127 0.141 0.167 0.193 0.220 0.254 0.317 0.380 0.443 0.506 0.570 0.635
0.172 0.195 0.209 0.236 0.250 0.293 0.334 0.377 0.489 0.586 0.683 0.779 0.873 0.971 1.079
0.020 0.025 0.025 0.031 0.031 0.040 0.047 0.056 0.062 0.078 0.094 0.109 0.125 0.141 0.156
0.035 0.040 0.040 0.047 0.047 0.055 0.062 0.070 0.109 0.125 0.141 0.156 0.171 0.188 0.203
0.182 0.209 0.223 0.252 0.266 0.307 0.350 0.391 0.491 0.596 0.691 0.787 0.883 0.981 1.093
0.025 0.031 0.031 0.040 0.040 0.047 0.056 0.063 0.077 0.097 0.115 0.133 0.151 0.170 0.189
0.040 0.047 0.047 0.055 0.055 0.062 0.070 0.077 0.110 0.130 0.145 0.160 0.176 0.193 0.210
0.208 0.239 0.253 0.300 0.314 0.375 0.434 0.497 0.535 0.622 0.741 0.839 0.939 1.041 1.157
0.027 0.034 0.034 0.045 0.045 0.057 0.068 0.080 0.084 0.108 0.123 0.143 0.162 0.182 0.202
0.053 0.062 0.062 0.079 0.079 0.096 0.112 0.130 0.132 0.143 0.170 0.186 0.204 0.223 0.242
/ / 0.173 0.202 0.216 0.267 0.294 / 0.365 0.460 0.553 0.647 0.737 / 0.923
/ / 0.022 0.030 0.030 0.047 0.047 / 0.078 0.093 0.125 0.140 0.172 / 0.203
/ / 0.022 0.030 0.030 0.042 0.042 / 0.047 0.062 0.076 0.090 0.103 / 0.125
Size
11/16 3/4 13/16 7/8 15/16 1 1-1/16 1-1/8 1-3/16 1-1/4 1-5/16 1-3/8 1-7/16 1-1/2
Nominal size
d max
min
dc Regular max
h ① Regular min
n Regular min
dc Heavy max
h ① Heavy min
n Heavy min
dc Extra-Duty max
h ① Extra-Duty min
n Extra-Duty min
dc Hi-Collar max
h ① Hi-Collar min
n Hi-Collar min
0.688 0.750 0.812 0.875 0.938 1.000 1.062 1.125 1.188 1.250 1.312 1.375 1.438 1.500
0.713 0.775 0.843 0.905 0.970 1.042 1.107 1.172 1.237 1.302 1.366 1.432 1.497 1.561
0.698 0.760 0.824 0.887 0.950 1.017 1.080 1.144 1.208 1.271 1.334 1.398 1.462 1.525
1.176 1.271 1.367 1.464 1.560 1.661 1.756 1.853 1.950 2.045 2.141 2.239 2.334 2.430
0.172 0.188 0.203 0.219 0.234 0.250 0.266 0.281 0.297 0.312 0.328 0.344 0.359 0.375
0.219 0.234 0.250 0.266 0.281 0.297 0.312 0.328 0.344 0.359 0.375 0.391 0.406 0.422
1.192 1.291 1.391 1.494 1.594 1.705 1.808 1.909 2.008 2.113 2.211 2.311 2.406 2.502
0.207 0.226 0.246 0.266 0.284 0.306 0.326 0.345 0.364 0.384 0.403 0.422 0.440 0.458
0.227 0.244 0.262 0.281 0.298 0.319 0.338 0.356 0.373 0.393 0.410 0.427 0.442 0.458
1.258 1.361 1.463 1.576 1.688 1.799 1.910 2.019 2.124 2.231 2.335 2.439 2.540 2.638
0.221 0.241 0.261 0.285 0.308 0.330 0.352 0.375 0.396 0.417 0.438 0.458 0.478 0.496
0.260 0.279 0.298 0.322 0.345 0.366 0.389 0.411 0.431 0.452 0.472 0.491 0.509 0.526
/ 1.111 / 1.296 / 1.483 / 1.669 / 1.799 / 2.041 / 2.170
/ 0.218 / 0.234 / 0.250 / 0.313 / 0.313 / 0.375 / 0.375
/ 0.154 / 0.182 / 0.208 / 0.236 / 0.236 / 0.292 / 0.292
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