HQ4134 is an AS568-134 black Buna-N (Nitrile) 70 Shore A Quad-Ring measuring an inside diameter of 1.862 in (47.29 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.068 in (52.53 mm). In service, this quad-ring provides a dual sealing band on each contact face for improved reliability.
Expect good resistance to water, propane and butane, and many alcohols. Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and low compression set under sustained load. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to ketones or strong acids will shorten service life. The profile itself contributes a parting line located away from the sealing surface and lower compressive load required to achieve a seal.
It sees regular use in automotive, general industrial maintenance, and fluid power.
Reference part number HQ4134 when ordering; the item is sold individually. Application requirements vary, so validate compatibility with your process conditions prior to installation. For a size or compound outside the standard catalog, APG can quote from a print or sample.
Description *4134-366Y MINNESOTA RUBBER QUAD RING
Actual Inside Diameter 1.862 inch (47.29 mm)
Actual Outside Diameter 2.068 inch (52.53 mm)
Actual Cross Section 0.103 inch (2.62 mm)
Measurement System Imperial
Product Category O-Rings - Square/Quad - Premium