+1 800-888-5223 Register Login

46 PTFE SOLID BACKUP RING FDA

PTFE Back-Up Ring, 4.239 in ID x 0.07 CS, 55D, White, -65 to 500°F

Picture of 46 PTFE SOLID BACKUP RING FDA
Status
Available
Est. Ship Date
31 Oct 2026
Material
PTFE (Polytetrafluoroethylene)
Dash Size
46
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
1/16 inch
Nominal Inside Diameter
4 1/4 inch
Nominal Outside Diameter
4 3/8 inch
Unit of Measure
EA
SKU:
TST046SO
Please login to see price and add to cart

Product Specification

-
Part number TST046SO is an AS568-046 white PTFE (Teflon) 55 Shore D Back-Up Ring measuring an inside diameter of 4.239 in (107.67 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 4.379 in (111.23 mm). A back-up ring allows a standard o-ring to operate at higher pressures than it could unsupported.

The material holds up against solvents, steam, and oxidizing media. PTFE (Teflon) offers a very wide continuous service temperature range and one of the lowest coefficients of friction of any solid. Published continuous service range is -65°F (-53.9°C) to 500°F (260°C).

Maintenance and OEM teams specify it across pharmaceutical and biotech, food and beverage, and chemical processing.

TST046SO ships individually. Review your operating media and conditions against this specification before installation.
Item
TST046SO
Description
46 PTFE SOLID BACKUP RING FDA
Actual Cross Section
0.07 inch (1.78 mm)
Actual Inside Diameter
4.239 inch (107.67 mm)
Actual Outside Diameter
4.379 inch (111.23 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6002
Product Category
O-Rings - Backup Rings