| O-RING S SIZE REFERENCE CHART | ||||||||||||
| 編號 | S | 內徑 | 公差 | 厚度 | 公差 | 備註 | S | 內徑 | 公差 | 厚度 | 公差 | 備註 |
| 1 | S3 | 2.5 | ±0.15 | 1.5 | ±0.10 | | S25 | 24.5 | ±0.15 | 2 | ±0.10 | |
| 2 | S4 | 3.5 | | 1.5 | | | S26 | 25.5 | | 2 | | |
| 3 | S6 | 5.5 | | 1.5 | | | S34 | 33.5 | | 2 | | |
| 4 | S7 | 6.5 | | 1.5 | | * | S35.5 | 35 | | 2 | | |
| 5 | S8 | 7.5 | | 1.5 | | | S36 | 35.5 | | 2 | | |
| 6 | S9 | 8.5 | | 1.5 | | | S40 | 39.5 | | 2 | | |
| 7 | S10 | 9.5 | | 1.5 | | | S42 | 41.5 | ±0.25 | 2 | | |
| 8 | S11 | 10.5 | | 1.5 | | | S44 | 43.5 | | 2 | | |
| 9 | S12 | 11.5 | | 1.5 | | | S48 | 47.5 | | 2 | | |
| 10 | S14 | 13.5 | | 1.5 | | | S54 | 53.5 | | 2 | | |
| 11 | S16 | 15.5 | | 1.5 | | | S55 | 54.5 | | 2 | | |
| 12 | S20 | 19.5 | | 1.5 | | | S60 | 59.5 | | 2 | | |
| 13 | | | | | | | S65 | 64.5 | | 2 | | |
| 14 | | | | | | | S71 | 70.5 | ±0.40 | 2 | | |
| 15 | | | | | | | S75 | 74.5 | | 2 | | |
| 16 | | | | | | | S80 | 79.5 | | 2 | | |
| 17 | | | | | | | S85 | 84.5 | | 2 | | |
| 18 | | | | | | | S90 | 89.5 | | 2 | | |
| 19 | | | | | | | S95 | 94.5 | | 2 | | |
| 20 | | | | | | | S100 | 99.5 | | 2 | | |
| 21 | | | | | | | S110 | 109.5 | | 2 | | |
| 22 | | | | | | | S112 | 111.5 | | 2 | | |
| 23 | | | | | | | S117 | 116.5 | | 2 | | |
| 24 | | | | | | | S120 | 119.5 | | 2 | | |
| 25 | | | | | | | S125 | 124.5 | | 2 | | |
| 26 | | | | | | | S130 | 129.5 | ±0.60 | 2 | | |
| 27 | | | | | | | S135 | 134.5 | | 2 | | |
| 28 | | | | | | | S140 | 139.5 | | 2 | | |
| 29 | | | | | | | S150 | 149.5 | | 2 | | |
| 30 | | | | | | | S195 | 194.5 | | 2 | | |


