ISO Outer Ring Centering Ring
| Parts No. | Flange Ref. | O/R Material | C/R Material | O-ring Material | O-ring size | A | B | C | D | E |
| CO-CN-N-63-VS | ISO63 | Aluminum | 304 S.S. | VITON | AS-336 | 67 | 70 | 8 | 3.9 | 94 |
| CO-CN-N-80-VS | ISO80 | Aluminum | 304 S.S. | VITON | AS-340 | 80 | 83 | 8 | 3.9 | 109 |
| CO-CN-N-100-VS | ISO100 | Aluminum | 304 S.S. | VITON | AS-347 | 100 | 102 | 8 | 3.9 | 128 |
| CO-CN-N-160-VS | ISO160 | Aluminum | 304 S.S. | VITON | AS-361 | 150 | 153 | 8 | 3.9 | 179 |
| CO-CN-N-200-VS | ISO200 | Aluminum | 304 S.S. | VITON | AS-371 | 210 | 213 | 8 | 3.9 | 238 |
| CO-CN-N-250-VS | ISO250 | Aluminum | 304 S.S. | VITON | AS-377 | 258 | 260 | 8 | 3.9 | 287 |
| CO-CN-N-320-VS | ISO320 | Aluminum | 304 S.S. | VITON | AS-454 | 312 | 318 | 12 | 5.6 | 344 |
| CO-CN-N-400-VS | ISO400 | Aluminum | 304 S.S. | VITON | AS-462 | 394 | 399 | 12 | 5.6 | 446 |
| CO-CN-N-500-VS | ISO500 | Aluminum | 304 S.S. | VITON | AS-469 | 494 | 500 | 12 | 5.6 | 535 |