Hercules Seals >> Back-Up Ring(Inch)
Back-Up Ring(Inch)
| Prefix | Product Image | Profile | Material | Temp | Pressure | Speed |
| 573 Back-Up Rings |  |  | Hytrel | -65° – +275° F | VARIES ACCORD ING TO DIAM ETRAL CLEAR ANCE | – |
| 574 “Parback®” Back-Up Rings |  |  | 90A Buna-N Rubber | -40° – +240° F | VARIES ACCORD ING TO DIAM ETRAL CLEAR ANCE | – |
| 575 Style 575 Back-Up Rings |  |  | Urethane PTFE | Urethane -65° – +220° F PTFE: -325° – +500° F | VARIES ACCORD ING TO DIAM ETRAL CLEAR ANCE | – |
| 576 Split Nylon Back-Up Rings |  |  | Nylon | -40° – +250° F | VARIES ACCORD ING TO DIAM ETRAL CLEAR ANCE | – |
| 590 High Performance Back-Up Rings |  |  | High Performance Urethane | -40° – +275° F | VARIES ACCORD ING TO DIAM ETRAL CLEAR ANCE | – |
| 595 U-Seal Back-Up Rings |  |  | PTFE | -100° – +500° F | VARIES ACCORD ING – DIAM ETRAL CLEAR ANCE | – |