Part number VQ4171 is an AS568-171 black Viton® (FKM) 75 Shore A quad profile Quad-Ring with an inside diameter of 7.987 in (202.87 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.193 in (208.1 mm). A quad-ring delivers lower friction and better sealing stability than a comparable round-section o-ring.
Viton® (FKM) is specified here for very low compression set at elevated temperature and outstanding high-temperature capability. The compound resists chlorinated solvents, many acids, and engine and transmission fluids. The material carries a published service range of -15°F (-26.1°C) to 400°F (204.4°C). Applications involving amines or hot water and steam call for a different compound.
You will find this material specified across oil and gas, aerospace, and semiconductor equipment.
Order part number VQ4171, sold individually. Nominal inside diameter is listed as 8 inch. Review your operating media and conditions against this specification before installation.
description *4171-514AD MINNESOTA RUBBER QUAD RING
Actual_ID 7.987 inch (202.87 mm)
Actual_OD 8.193 inch (208.1 mm)
Actual_CS 0.103 inch (2.62 mm)
ProductCode Description O-Rings - Square/Quad - Premium