AS568-139 O-Ring
Standard Aerospace Size O-Ring | SAE AS568B
Dimensions (Imperial)
| Inner Diameter (ID) | 2.175" ±0.005" |
| Cross Section (CS) | 0.103" ±0.003" |
| Outer Diameter (OD) | ~2.381" |
Dimensions (Metric)
| Inner Diameter (ID) | 55.25 mm |
| Cross Section (CS) | 2.62 mm |
| Outer Diameter (OD) | ~60.49 mm |
Tolerance Class
Standard AS568B Class 2 tolerances apply. For critical applications requiring tighter tolerances, specify Class 1 when ordering.
Frequently Asked Questions
What are the dimensions of AS568-139?
AS568-139 has an Inner Diameter (ID) of 2.175" (55.25mm) and Cross Section (CS) of 0.103" (2.62mm).
What materials are available for AS568-139?
Common materials include Nitrile (NBR), Viton (FKM), EPDM, and Silicone. See our material guide for selection help.