Home › AS568-130
AS568-130 O-Ring Size
100 series · 3/32" cross section · Hydraulics, pumps, valves
Inside diameter × cross section
40.94 × 2.62 mm
1.612″ × 0.103″ ·
outside diameter 46.18 mm (1.818″)
Dimensions
| Dimension | Inches | Millimetres |
|---|---|---|
| Inside diameter (ID) | 1.612″ | 40.94 mm |
| Cross section (CS) | 0.103″ | 2.62 mm |
| Outside diameter (OD) | 1.818″ | 46.18 mm |
Outside diameter is not measured, it is derived: OD = ID + 2 × CS.
If your measured OD disagrees with this, trust the ID and cross section — measuring
across the outside of a flexible ring is the least reliable of the three.
If you measured a used one
A ring pulled out of service will measure smaller than 40.94 mm, because compression set is permanent. If your measurement came in a little under this and the cross section roughly matches, -130 is very likely still the correct part. Ordering the size your worn ring measures is how the same failure repeats. More on this →
Nearby sizes in the 100 series
These share the same 3/32" cross section, so if the thickness is right but the diameter is off, your ring is probably one of these.
| Dash | ID (mm) | ID (in) | OD (mm) |
|---|---|---|---|
| -131 | 42.52 | 1.674″ | 47.75 |
| -129 | 39.34 | 1.549″ | 44.58 |
| -128 | 37.77 | 1.487″ | 43.0 |
| -132 | 44.12 | 1.737″ | 49.35 |