-391 BLACK AFLAS 80D O-RING

Aflas O-Ring, 21.953 in ID x 0.21 CS, 80A, Black, -25 to 450°F

Status
Out of Stock
Est. Ship Date
29 Oct 2026
Material
Aflas
Dash Size
391
Durometer
80 Shore A
Cross Section Type
Round
Color
Black
Minimum Temperature
-25°F (-3.9°C)
Maximum Temperature
450°F (232°C)
Nominal Cross Section
3/16 inch
Nominal Inside Diameter
22 inch
Nominal Outside Diameter
22 3/8 inch
Unit of Measure
EA
SKU:
A80391

Product Specification

-
This o-ring is supplied in AS568-391 black Aflas (TFE/P) 80 Shore A with an inside diameter of 21.953 in (557.61 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 22.373 in (568.27 mm), catalogued under part number A80391. It compresses into its gland to block fluid or gas migration across a joint.

Aflas (TFE/P) is valued for high-temperature steam capability that most fluoroelastomers cannot match and exceptional resistance to amine-based additives. Expect good resistance to amines and corrosion inhibitors, hot water, and sour gas and hydrogen sulfide. Service temperature is rated from -25°F (-31.7°C) through 450°F (232.2°C). Verify compatibility before use with low-temperature dynamic service or aromatic hydrocarbons.

Typical settings include power generation, geothermal equipment, and chemical processing.

This item is sold individually under part number A80391. Nominal inside diameter is listed as 22 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Item
A80391
Description
-391 BLACK AFLAS 80D O-RING
Actual Cross Section
0.21 inch (5.33 mm)
Actual Inside Diameter
21.953 inch (557.61 mm)
Actual Outside Diameter
22.373 inch (568.27 mm)
FDA Compliant
No
Measurement System
Imperial
Metal Detectable
No
NSF Certified
No
Product Code
6006
Product Category
O-Rings - Bulk - Premium