Standard AS568 O-ring

AS568-420 O-Ring, 3.850 x 0.275 in (97.79 x 6.99 mm)

The AS568-420 O-ring (dash 420, also written 2-420) has an inside diameter of 3.850 in (97.79 mm), a cross section of 0.275 in (6.99 mm), nominal 1/4 inch, and an outside diameter of 4.400 in (111.77 mm). We supply it in Silicone, in packs of 10, 25 and 100.

Size

AS568 size-420
Inside diameter (ID)3.850 in (97.79 mm)
Cross section (CS)0.275 in (6.99 mm), nominal 1/4 in
Outside diameter (OD)4.400 in (111.77 mm)

Rubber and pack prices

Rubber10-pack25-pack100-pack
Silicone 70A (orange)Good for a wide temperature range and food-contact use.$15.99$44.99Request a quote

A size match is not a fit claim for your equipment. Some sizes ship from stock; others have a 2-3 business day lead time before they ship. Not for oxygen, medical, aviation, scuba or other safety-critical use.

Not sure of your size?Measure the inside diameter and the thickness of your old O-ring, or send us the part number, and we will match it.Contact usSearch sizes in the Filter Finder