حلقات O-Ring من Viton FKM 0.21 بوصة CS × 1.85 بوصة ID | AS568-328 | داش 328 | X-Ring | صلابة 70 (10 / عبوة)

The cross-section on these is exactly 0.21" as specified, and they fit perfectly on my hydraulic fitting. Viton holds up great under the heat cycling in my shop.

Replaced the seals on my compressor manifold after the old ones hardened up, and these Viton x-rings slipped right into place. They handle the 350-degree exhaust heat without any issue so far, and the 70 durometer feel gives just the right amount of give under pressure.

Hadn't used FKM rings before but needed something that could handle higher heat in a hydraulic fitting; these slipped on easily and the x-ring profile sealed tighter than my old standard o-rings.