This quad-ring is supplied in AS568-146 black Buna-N (Nitrile) 70 Shore A supplied with an inside diameter of 2.612 in (66.34 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 2.818 in (71.58 mm), catalogued under part number HQ4146. It delivers lower friction and better sealing stability than a comparable round-section o-ring.
The compound resists hydraulic fluids, propane and butane, and greases and lubricants. Buna-N (Nitrile) is specified for an economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to ketones or ozone and direct sunlight 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.
You will find this material specified across general industrial maintenance, construction equipment, and fluid power.
This item is sold individually under part number HQ4146. Nominal inside diameter is listed as 2 5/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description *4146-366Y MINNESOTA RUBBER QUAD RING
Actual Inside Diameter 2.612 inch (66.34 mm)
Actual Outside Diameter 2.818 inch (71.58 mm)
Actual Cross Section 0.103 inch (2.62 mm)
Measurement System Imperial
Product Category O-Rings - Square/Quad - Premium