Standard AS568 O-ring

AS568-166 O-Ring, 6.737 x 0.103 in (171.12 x 2.62 mm)

The AS568-166 O-ring (dash 166, also written 2-166) has an inside diameter of 6.737 in (171.12 mm), a cross section of 0.103 in (2.62 mm), nominal 3/32 inch, and an outside diameter of 6.943 in (176.36 mm). We supply it in Buna-N (nitrile), EPDM or Silicone, in packs of 10, 25 and 100.

Size

AS568 size-166
Inside diameter (ID)6.737 in (171.12 mm)
Cross section (CS)0.103 in (2.62 mm), nominal 3/32 in
Outside diameter (OD)6.943 in (176.36 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$11.99$51.99
EPDM 70AGood for hot water, steam and chlorinated or chloraminated water.$10.99$25.99Request a quote
Silicone 70A (orange)Good for a wide temperature range and food-contact use.$12.99$29.99Request 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