-129 BLACK FKM 75D O-RING

Ordered as V70129, this is an AS568-129 black Viton® (FKM) 75 Shore A O-Ring measuring an inside diameter of 1.549 in (39.34 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.755 in (44.58 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

As a material, Viton® (FKM) delivers the industry benchmark where nitrile reaches its thermal limit, excellent resistance to compression set and permeation. Expect good resistance to engine and transmission fluids, aggressive chemicals, and chlorinated solvents. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Applications involving hot water and steam or low-molecular-weight organic acids call for a different compound.

Maintenance and OEM teams specify it across oil and gas, high-temperature process equipment, and chemical processing.

Reference part number V70129 when ordering; the item is sold individually. Unit weight is approximately 1.3395 g and nominal inside diameter is listed as 1 9/16 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.