*2103-210 TEFLON SOLID BACKUP FDA

PTFE Back-Up Ring, 0.734 in ID x 0.139 CS, 55D, White, -65 to 500°F

Status
Available
Est. Ship Date
31 Oct 2026
Material
PTFE (Polytetrafluoroethylene)
Dash Size
210
Durometer
55 Shore D
Cross Section Type
Round
Color
White
Minimum Temperature
-65°F (-53.9°C)
Maximum Temperature
500°F (260°C)
Nominal Cross Section
1/8 inch
Nominal Inside Diameter
3/4 inch
Nominal Outside Diameter
1 inch
Unit of Measure
EA
SKU:
TST210SO
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Product Specification

-
TST210SO is an AS568-210 white PTFE (Teflon) 55 Shore D Back-Up Ring measuring an inside diameter of 0.734 in (18.64 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.012 in (25.7 mm). In service, this back-up ring allows a standard o-ring to operate at higher pressures than it could unsupported.

As a material, PTFE (Teflon) delivers one of the lowest coefficients of friction of any solid and excellent dielectric properties. The material holds up against solvents, nearly all industrial chemicals, and oxidizing media. Continuous operating temperature is published at -65°F (-53.9°C) to 500°F (260°C). It is not the right choice where elemental fluorine at temperature or service requiring elastic recovery are present.

Typical settings include food and beverage, laboratory equipment, and pharmaceutical and biotech.

This item is sold individually under part number TST210SO. As always, verify media compatibility and operating conditions against the requirements of your specific application.
Item
TST210SO
Description
*2103-210 TEFLON SOLID BACKUP FDA
Actual Cross Section
0.139 inch (3.53 mm)
Actual Inside Diameter
0.734 inch (18.64 mm)
Actual Outside Diameter
1.012 inch (25.7 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6002
Product Category
O-Rings - Backup Rings