Greene, Tweed & Co. Datasheets for Back-up Rings
Back-up rings or anti-extrusion rings are washer-like devices used to prevent seals from extruding through gaps while under pressure. Seals are installed in the downstream side of the gland.
Back-up Rings: Learn more
| Product Name | Notes |
|---|---|
| Greene, Tweed’s 4270 series has been specifically designed for use in MIL-G-5514 gland configurations as anti-extrusion devices in conjunction with O-rings, packings or other elastomeric seal types. A variety of... | |
| Greene, Tweed’s new 43 back-up ring series has been specifically designed for use in AS5857 gland configurations as anti-extrusion devices in conjunction with O-rings, packings or other elastomeric seal types. | |
| 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... |