Standard AS568 O-ring

AS568-449 O-Ring, 9.975 x 0.275 in (253.37 x 6.99 mm)

The AS568-449 O-ring (dash 449, also written 2-449) has an inside diameter of 9.975 in (253.37 mm), a cross section of 0.275 in (6.99 mm), nominal 1/4 inch, and an outside diameter of 10.525 in (267.35 mm). We supply it in Buna-N (nitrile) or Silicone, in packs of 10, 25 and 100.

Size

AS568 size-449
Inside diameter (ID)9.975 in (253.37 mm)
Cross section (CS)0.275 in (6.99 mm), nominal 1/4 in
Outside diameter (OD)10.525 in (267.35 mm)

Rubber and pack prices

Rubber10-pack25-pack100-pack
Buna-N (nitrile) 70AGood for water, air and petroleum oils; the usual choice for filter housings.$20.99Request a quoteRequest a quote
Silicone 70A (orange)Good for a wide temperature range and food-contact use.$50.99Request a quoteRequest 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