This series provides a part numbering system for back-up rings as per the Aerospace specifications AS5781 and AS5782. These specifications are based on virgin but pigmented PTFE materials. AS5781 is the specification for scarf-cut (split) back-up rings while AS5782 is the specification for solid-type rings. Either is appropriate for use in AS4716 glands
| Greene, Tweed & Co. | |
|---|---|
| Product Category | Dynamic Seals |
| Product Name | 4230 Series Back-Up Rings |
| Seal Type | Back-up Ring |
