The TFE205 is an AS568-205 white PTFE (Teflon) 55 Shore D O-Ring with an inside diameter of 0.421 in (10.69 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 0.699 in (17.75 mm). This o-ring compresses into its gland to block fluid or gas migration across a joint.
As a material, PTFE (Teflon) delivers non-stick, non-contaminating surface characteristics and a very wide continuous service temperature range. This material stands up to nearly all industrial chemicals, solvents, and oxidizing media. Published continuous service range is -65°F (-53.9°C) to 500°F (260°C).
Common environments for this compound include aggressive-media pipelines, chemical processing, and food and beverage.
Reference part number TFE205 when ordering; the item is sold individually. Nominal inside diameter is listed as 7/16 inch. 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 568-205 PTFE ORINGS FDA
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 0.421 inch (10.69 mm)
Actual Outside Diameter 0.699 inch (17.75 )
Measurement System Imperial
Product Category O-Rings - Bulk - Premium