Ordered as HQ4373, this is an AS568-373 black Buna-N (Nitrile) 70 Shore A quad profile Quad-Ring supplied with an inside diameter of 8.975 in (227.97 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.395 in (238.63 mm). The quad-ring uses a four-lobed profile to create two sealing surfaces per side, reducing the squeeze needed to seal.
Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The compound resists water, many alcohols, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with ozone and direct sunlight or ketones.
Typical settings include automotive, hydraulic and pneumatic systems, and fluid power.
HQ4373 ships individually. Application requirements vary, so validate compatibility with your process conditions prior to installation.
description *4373-366Y MINNESOTA RUBBER QUAD RING
Actual_ID 8.975 inch (227.97 mm)
Actual_OD 9.395 inch (238.63 mm)
Actual_CS 0.21 inch (5.33 mm)
ProductCode Description O-Rings - Square/Quad - Premium