NBR Metric O-Ring Kits
| NO. | ID x CS | Qty | NO. | ID xCS | Qty |
| R-01 | 3.0 x 2.0 | 16 | R-16 | 20 x 3.0 | 12 |
| R-02 | 4.0 x 2.0 | 16 | R-17 | 22 x 3.0 | 12 |
| R-03 | 5.0 x 2.0 | 16 | R-18 | 24 x 3.0 | 12 |
| R-04 | 6.0 x 2.0 | 16 | R-19 | 25 x 3.0 | 12 |
| R-05 | 7.0 x 2.0 | 16 | R-20 | 27 x 3.0 | 12 |
| R-06 | 8.0 x 2.0 | 16 | R-21 | 28 x 3.0 | 12 |
| R-07 | 10 x 2.0 | 16 | R-22 | 30 x 3.0 | 12 |
| R-08 | 10 x 2.5 | 13 | R-23 | 32 x 3.0 | 12 |
| R-09 | 11 x 2.5 | 13 | R-24 | 33 x 3.0 | 12 |
| R-10 | 12 x 2.5 | 13 | R-25 | 35 x 3.0 | 12 |
| R-11 | 14 x 2.5 | 13 | R-26 | 36 x 3.0 | 12 |
| R-12 | 16 x 2.5 | 13 | R-27 | 38 x 3.0 | 12 |
| R-13 | 17 x 2.5 | 13 | R-28 | 38 x 4.0 | 9 |
| R-14 | 19 x 2.5 | 13 | R-29 | 41 x 4.0 | 9 |
| R-15 | 19 x 3.0 | 12 | R-30 | 44 x 4.0 | 9 |