-381 BLACK FKM 90D O-RING

Ordered as V90381, this is an AS568-381 black Viton® (FKM) 90 Shore A O-Ring with an inside diameter of 11.975 in (304.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 12.395 in (314.83 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.

Viton® (FKM) is specified here for excellent resistance to compression set and permeation, outstanding high-temperature capability. The material holds up against petroleum oils and fuels, many acids, and aggressive chemicals. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). Verify compatibility before use with ketones and esters or amines.

Maintenance and OEM teams specify it across high-temperature process equipment, aerospace, and automotive fuel systems.

Reference part number V90381 when ordering; the item is sold individually. Unit weight is approximately 39.3089 g and nominal inside diameter is listed as 12 inch. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.