This quad-ring is supplied in AS568-277 black Viton® (FKM) 75 Shore A quad profile built to an inside diameter of 11.484 in (291.69 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 11.762 in (298.75 mm), catalogued under part number VQ4277. It delivers lower friction and better sealing stability than a comparable round-section o-ring.
The compound resists aggressive chemicals, aromatic hydrocarbons, and engine and transmission fluids. Viton® (FKM) delivers long service life in hot, chemically aggressive environments and the industry benchmark where nitrile reaches its thermal limit. Continuous operating temperature is published at -15°F (-26.1°C) to 400°F (204.4°C). It should not be specified for service in hot water and steam or amines.
Common environments for this compound include chemical processing, semiconductor equipment, and oil and gas.
This item is sold individually under part number VQ4277. Nominal inside diameter is listed as 11 1/2. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description **4277-514AD MINNESOTA RUBBER QUADRING
Actual_ID 11.484 inch (291.69 mm)
Actual_OD 11.762 inch (298.75 mm)
Actual_CS 0.139 inch (3.53 mm)
ProductCode Description O-Rings - Square/Quad - Premium