O-Ring Sizes
O-Ring sizes and dimensions BS1806 - AS568A |
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Materials | ||
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NBR | FKM/VIT | EPDM |
HNBR | FFKM | Neoprene |
PTFE | Silicone | Fluorosilicone |
Other materials are available on request
3/32" cross section | ||||||
---|---|---|---|---|---|---|
2.62mm ± 0.08mm 0.103"± 0.003" | ||||||
Internal diameter | Nominal size | |||||
Part No. (BS) | mm | Tol ± | Inch | Tol ± | Shaft | Bore |
102 | 1.24 | 0.10 | 0.049 | 0.004 | 1/16 | 1/4 |
103 | 2.06 | 0.13 | 0.081 | 0.005 | 3/32 | 9/32 |
104 | 2.84 | 0.13 | 0.112 | 0.005 | 1/8 | 5/16 |
105 | 3.63 | 0.13 | 0.143 | 0.005 | 5/32 | 11/32 |
106 | 4.42 | 0.13 | 0.174 | 0.005 | 3/16 | 3/8 |
107 | 5.23 | 0.13 | 0.206 | 0.005 | 7/32 | 13/32 |
108 | 6.02 | 0.13 | 0.237 | 0.005 | 1/4 | 7/16 |
109 | 7.60 | 0.13 | 0.299 | 0.005 | 5/16 | 1/2 |
110 | 9.19 | 0.13 | 0.362 | 0.005 | 3/8 | 9/16 |
613 | 9.92 | 0.13 | 0.391 | 0.005 | 25/64 | 37/64 |
111 | 10.78 | 0.13 | 0.424 | 0.005 | 7/16 | 5/8 |
614 | 11.91 | 0.13 | 0.469 | 0.005 | 15/32 | 21/32 |
112 | 12.37 | 0.13 | 0.487 | 0.005 | 1/2 | 11/16 |
615 | 13.10 | 0.13 | 0.516 | 0.005 | 33/64 | 45/64 |
113 | 13.95 | 0.13 | 0.549 | 0.005 | 9/16 | 3/4 |
616 | 15.08 | 0.13 | 0.594 | 0.005 | 19/32 | 25/32 |
114 | 15.54 | 0.13 | 0.612 | 0.005 | 5/8 | 13/16 |
809 | 15.88 | 0.13 | 0.625 | 0.005 | - | - |
115 | 17.13 | 0.13 | 0.674 | 0.005 | 11/16 | 7/8 |
617 | 17.86 | 0.13 | 0.703 | 0.005 | - | - |
116 | 18.72 | 0.13 | 0.737 | 0.005 | 3/4 | 15/16 |
117 | 20.29 | 0.15 | 0.799 | 0.006 | 13/16 | 1 |
812 | 20.63 | 0.15 | 0.812 | 0.006 | - | - |
118 | 21.89 | 0.15 | 0.862 | 0.006 | 7/8 | 1.1/16 |
813 | 22.22 | 0.15 | 0.875 | 0.006 | - | - |
119 | 23.47 | 0.15 | 0.925 | 0.006 | 15/16 | 1.1/8 |
814 | 23.81 | 0.15 | 0.937 | 0.006 | - | - |
120 | 25.07 | 0.15 | 0.987 | 0.006 | 1 | 1.3/16 |
121 | 26.64 | 0.15 | 1.049 | 0.006 | 1.1/16 | 1.1/4 |
122 | 28.25 | 0.15 | 1.112 | 0.006 | 1.1/8 | 1.5/16 |
123 | 29.82 | 0.15 | 1.174 | 0.006 | 1.3/16 | 1.3/8 |
124 | 31.42 | 0.15 | 1.237 | 0.006 | 1.1/4 | 1.7/16 |
125 | 33.00 | 0.15 | 1.299 | 0.006 | 1.5/16 | 1.1/2 |
126 | 34.59 | 0.15 | 1.362 | 0.006 | 1.3/8 | 1.9/16 |
127 | 36.17 | 0.15 | 1.424 | 0.006 | 1.7/16 | 1.5/8 |
128 | 37.77 | 0.15 | 1.487 | 0.006 | 1.1/2 | 1.11/16 |
129 | 39.34 | 0.25 | 1.549 | 0.010 | 1.9/16 | 1.3/4 |
130 | 40.95 | 0.25 | 1.612 | 0.010 | 1.5/8 | 1.13/16 |
131 | 42.52 | 0.25 | 1.674 | 0.010 | 1.11/16 | 1.7/8 |
132 | 44.12 | 0.25 | 1.737 | 0.010 | 1.3/4 | 1.15/16 |
133 | 45.69 | 0.25 | 1.799 | 0.010 | 1.13/16 | 2 |
134 | 47.29 | 0.25 | 1.862 | 0.010 | 1.7/8 | 2.1/16 |
135 | 48.90 | 0.25 | 1.925 | 0.010 | 1.15/16 | 2.1/8 |
136 | 50.47 | 0.25 | 1.987 | 0.010 | 2 | 2.3/16 |
137 | 52.07 | 0.25 | 2.050 | 0.010 | 2.1/16 | 2.1/4 |
3/32" cross section | ||||||
---|---|---|---|---|---|---|
2.62mm ± 0.08mm 0.103"± 0.003" | ||||||
Internal diameter | Nominal size | |||||
Part No. (BS) | mm | Tol ± | Inch | Tol ± | Shaft | Bore |
138 | 53.65 | 0.25 | 2.112 | 0.010 | 2.1/16 | 2.5/16 |
139 | 55.25 | 0.25 | 2.175 | 0.010 | 2.3/16 | 2.3/8 |
140 | 56.82 | 0.25 | 2.237 | 0.010 | 2.1/4 | 2.7/16 |
141 | 58.42 | 0.25 | 2.300 | 0.010 | 2.5/16 | 2.1/2 |
142 | 60.00 | 0.25 | 2.362 | 0.010 | 2.3/8 | 2.9/16 |
143 | 61.60 | 0.25 | 2.425 | 0.010 | 2.7/16 | 2.5/8 |
144 | 63.17 | 0.25 | 2.487 | 0.010 | 2.1/2 | 2.11/16 |
145 | 64.77 | 0.25 | 2.550 | 0.010 | 2.9/16 | 2.3/4 |
146 | 66.35 | 0.25 | 2.612 | 0.010 | 2.5/8 | 2.13/16 |
147 | 67.95 | 0.38 | 2.675 | 0.015 | 2.11/16 | 2.7/8 |
148 | 69.52 | 0.38 | 2.737 | 0.015 | 2.3/4 | 2.15/16 |
149 | 71.12 | 0.38 | 2.800 | 0.015 | 2.13/16 | 3 |
150 | 72.69 | 0.38 | 2.862 | 0.015 | 2.7/8 | 3.1/16 |
640 | 74.30 | 0.38 | 2.924 | 0.015 | 2.15/16 | 3.1/8 |
151 | 75.87 | 0.38 | 2.987 | 0.015 | 3 | 3.3/16 |
641 | 77.50 | 0.38 | 3.049 | 0.015 | 3.1/16 | 3.1/4 |
642 | 80.60 | 0.38 | 3.174 | 0.015 | 3.3/16 | 3.3/8 |
152 | 82.22 | 0.38 | 3.237 | 0.015 | 3.1/4 | 3.7/16 |
643 | 83.80 | 0.38 | 3.299 | 0.015 | 3.5/16 | 3.1/2 |
153 | 88.57 | 0.38 | 3.487 | 0.015 | 3.1/2 | 3.11/16 |
154 | 94.93 | 0.38 | 3.737 | 0.015 | 3.3/4 | 3.15/16 |
155 | 101.27 | 0.38 | 3.987 | 0.015 | 4 | 4.3/16 |
156 | 107.63 | 0.38 | 4.237 | 0.015 | 4.1/4 | 4.7/16 |
157 | 113.98 | 0.38 | 4.487 | 0.015 | 4.1/2 | 4.11/16 |
158 | 120.33 | 0.38 | 4.737 | 0.015 | 4.3/4 | 4.15/16 |
159 | 126.67 | 0.38 | 4.987 | 0.015 | 5 | 5.3/16 |
160 | 133.00 | 0.58 | 5.237 | 0.023 | 5.1/4 | 5.7/16 |
161 | 139.38 | 0.58 | 5.487 | 0.023 | 5.1/2 | 5.11/16 |
162 | 145.72 | 0.58 | 5.737 | 0.023 | 5.3/4 | 5.15/16 |
163 | 152.07 | 0.58 | 5.987 | 0.023 | 6 | 6.3/16 |
164 | 158.41 | 0.58 | 6.237 | 0.023 | 6.1/4 | 6.7/16 |
165 | 164.78 | 0.58 | 6.487 | 0.023 | 6.1/2 | 6.11/16 |
166 | 171.13 | 0.58 | 6.737 | 0.023 | 6.3/4 | 6.15/16 |
167 | 177.47 | 0.58 | 6.987 | 0.023 | 7 | 7.3/16 |
168 | 183.83 | 0.76 | 7.237 | 0.030 | 7.1/4 | 7.7/16 |
169 | 190.18 | 0.76 | 7.487 | 0.030 | 7.1/2 | 7.11/16 |
170 | 196.58 | 0.76 | 7.737 | 0.030 | 7.3/4 | 7.15/16 |
171 | 202.87 | 0.76 | 7.987 | 0.030 | 8 | 8.3/16 |
172 | 209.23 | 0.76 | 8.237 | 0.030 | 8.1/4 | 8.7/16 |
173 | 215.58 | 0.76 | 8.487 | 0.030 | 8.1/2 | 8.11/16 |
174 | 221.93 | 0.76 | 8.737 | 0.030 | 8.3/4 | 8.15/16 |
175 | 228.28 | 0.76 | 8.987 | 0.030 | 9 | 9.3/16 |
176 | 234.63 | 0.76 | 9.237 | 0.030 | 9.1/4 | 9.7/16 |
177 | 240.98 | 0.76 | 9.487 | 0.030 | 9.1/2 | 9.11/16 |
178 | 247.33 | 0.76 | 9.737 | 0.030 | 9.3/4 | 9.15/16 |