8-425ST
PTFE O-Ring Back-Up, 4.551 X 5.023 X 0.236, Dash# 425
Part #:
8-425ST
Min. Order Qty: 1
Brand: HPSI
HPSI
PTFE O-Ring Back-Ups are designed to support O-rings and help prevent extrusion in high-pressure and high-temperature applications. Sized according to standard AS568 O-ring dash numbers, these back-up rings feature a concave profile that provides enhanced support for 90A Buna-N O-rings. Available in solid (SOLT) and split (ST) designs, with spiral PTFE back-up rings available upon request.
| Construction | : | Split |
| Dash Number | : | -425 |
| Inside Diameter | : | 4.551 in |
| Material | : | PTFE |
| Outside Diameter | : | 5.023 in |
| Part Number | : | (Prefix)-(O-Ring Dash#)(Construction) |
| Temperature Range | : | -40° to 500°F |
| Width | : | 0.236 in |
- PTFE construction provides durable anti-extrusion support
- Designed for high-pressure and high-temperature applications
- Concave profile provides enhanced support for 90A Buna-N O-rings
- Helps prevent O-ring extrusion in demanding conditions
- Supports improved sealing performance
- Standard AS568 O-ring dash-number sizing
- Available in solid (SOLT) designs
- Available in split (ST) designs
- Spiral PTFE back-up rings available upon request
