Internal Tooth-Lock Washers - Type B

Standard ASME B18.21.1-1999
Description Internal Tooth-Lock Washer, ASME B18.21.1, No. 2 in., Type B
Part number ASME B18.21.1 - ITLW-B - NS No. 2
Product selection
Selector Nominal Washer Size Nominal Washer Size (inch) A Max. - Inside Diameter (inch) A Min. - Inside Diameter (inch) B Max. - Outside Diameter (inch) B Min. - Outside Diameter (inch) C Max. - Thickness (inch) C Min. - Thickness (inch)
1 No. 2 0.086 0.095 0.089 0.2 0.175 0.016 0.01
2 No. 3 0.099 0.109 0.102 0.232 0.215 0.016 0.01
3 No. 4 0.112 0.123 0.115 0.27 0.245 0.018 0.012
4 No. 5 0.125 0.136 0.129 0.28 0.255 0.02 0.014
5 No. 6 0.138 0.15 0.141 0.295 0.275 0.022 0.016
6 No. 8 0.164 0.176 0.168 0.34 0.325 0.023 0.018
7 No. 10 0.19 0.204 0.195 0.381 0.365 0.024 0.018
8 No. 12 0.216 0.231 0.221 0.41 0.394 0.027 0.02
9 1/4 0.25 0.267 0.256 0.478 0.46 0.028 0.023
10 5/16 0.3125 0.332 0.32 0.61 0.594 0.034 0.028
11 3/8 0.375 0.398 0.384 0.692 0.67 0.04 0.032
12 7/16 0.4375 0.464 0.448 0.789 0.74 0.04 0.032
13 1/2 0.5 0.53 0.512 0.9 0.867 0.045 0.037
14 9/16 0.5625 0.596 0.576 0.985 0.957 0.045 0.037
15 5/8 0.625 0.663 0.64 1.071 1.045 0.05 0.042
16 11/16 0.6875 0.728 0.704 1.166 1.13 0.05 0.042
17 3/4 0.75 0.795 0.769 1.245 1.22 0.055 0.047
18 13/16 0.8125 0.861 0.832 1.315 1.29 0.055 0.047
19 7/8 0.875 0.927 0.894 1.41 1.364 0.06 0.052
20 1 1 1.06 1.019 1.637 1.59 0.067 0.059
21 1 1/8 1.125 1.192 1.144 1.83 1.799 0.067 0.059
22 1 1/4 1.25 1.325 1.275 1.975 1.921 0.067 0.059
Nominal Washer Size
Nominal Washer Size (inch)
A Max. - Inside Diameter (inch)
A Min. - Inside Diameter (inch)
B Max. - Outside Diameter (inch)
B Min. - Outside Diameter (inch)
C Max. - Thickness (inch)
C Min. - Thickness (inch)