-221 BROWN FKM 75D O-RING

The VB75221 is an AS568-221 brown Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 1.421 in (36.09 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.699 in (43.15 mm). This o-ring delivers dependable bidirectional sealing in a compact groove envelope.

This material stands up to engine and transmission fluids, many acids, and aggressive chemicals. That behavior comes from the compound itself: Viton® (FKM) offers excellent resistance to compression set and permeation, very low compression set at elevated temperature. Service temperature is rated from -15°F (-26.1°C) through 400°F (204.4°C). It is not the right choice where ketones and esters or hot water and steam are present.

It sees regular use in automotive fuel systems, chemical processing, and aerospace.

VB75221 ships individually. Unit weight is approximately 2.61 g and nominal inside diameter is listed as 1 7/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.