APG stocks the SH70367, an AS568-367 black Buna-N (Nitrile) 70 Shore A square profile Quad-Ring with an inside diameter of 7.475 in (189.87 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 7.895 in (200.53 mm). A quad-ring provides a dual sealing band on each contact face for improved reliability.
Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. Expect good resistance to many alcohols, water, and propane and butane. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to strong acids or automotive brake fluid will shorten service life.
Maintenance and OEM teams specify it across automotive, hydraulic and pneumatic systems, and general industrial maintenance.
Stocked as SH70367 and sold individually. Unit weight is approximately 16.791 g and nominal inside diameter is listed as 7 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
description 568-367 BUNA 70 SQUARE CUT RINGS
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 7.475 inch (189.87 mm)
Actual_OD 7.895 inch (200.53 mm)
ProductCode Description O-Rings - Square/Quad - Commodity