Part number TST466SO is an AS568-466 white PTFE (Teflon) 55 Shore D Back-Up Ring with an inside diameter of 18.455 in (468.76 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 19.005 in (482.73 mm). A back-up ring allows a standard o-ring to operate at higher pressures than it could unsupported.
PTFE (Teflon) offers near-universal chemical inertness and a very wide continuous service temperature range. This material stands up to nearly all industrial chemicals, solvents, and steam. Rated temperature range runs from -65°F (-53.9°C) to 500°F (260°C) in continuous service.
Common environments for this compound include laboratory equipment, food and beverage, and semiconductor fabrication.
This item is sold individually under part number TST466SO. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 466 PTFE SOLID BACKUP RING FDA
Actual_CS 0.275 inch (6.99 mm)
Actual_ID 18.455 inch (468.76 mm)
Actual_OD 19.005 inch (482.73 mm)
ProductCode Description O-Rings - Backup Rings