Standard AS568 O-ring

AS568-234 O-Ring, 2.984 x 0.139 in (75.79 x 3.53 mm)

The AS568-234 O-ring (dash 234, also written 2-234) has an inside diameter of 2.984 in (75.79 mm), a cross section of 0.139 in (3.53 mm), nominal 1/8 inch, and an outside diameter of 3.262 in (82.85 mm). We supply it in Buna-N (nitrile), Viton (FKM), EPDM or Silicone, in packs of 10, 25 and 100.

Size

AS568 size-234
Inside diameter (ID)2.984 in (75.79 mm)
Cross section (CS)0.139 in (3.53 mm), nominal 1/8 in
Outside diameter (OD)3.262 in (82.85 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.$5.99$8.99$31.99
Viton (FKM) 75AGood for heat, fuels and many chemicals.$13.99$30.99Request a quote
EPDM 70AGood for hot water, steam and chlorinated or chloraminated water.$6.99$13.99$56.99
Silicone 70A (orange)Good for a wide temperature range and food-contact use.$6.99$14.99$61.99

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