AS568-045 O-Ring
Standard Aerospace Size O-Ring | SAE AS568B
Dimensions (Imperial)
| Inner Diameter (ID) | 3.989" ±0.005" |
| Cross Section (CS) | 0.07" ±0.003" |
| Outer Diameter (OD) | ~4.129" |
Dimensions (Metric)
| Inner Diameter (ID) | 101.32 mm |
| Cross Section (CS) | 1.78 mm |
| Outer Diameter (OD) | ~104.88 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 AS568-045?
AS568-045 has an Inner Diameter (ID) of 3.989" (101.32mm) and Cross Section (CS) of 0.07" (1.78mm).
What materials are available for AS568-045?
Common materials include Nitrile (NBR), Viton (FKM), EPDM, and Silicone. See our material guide for selection help.