Q-347 BUNA 70 Q RING

This quad-ring is supplied in AS568-347 black Buna-N (Nitrile) 70 Shore A built to an inside diameter of 4.225 in (107.32 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.645 in (117.98 mm), catalogued under part number QH70347. It seats in a standard o-ring gland while offering improved dynamic performance.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. Expect good resistance to many alcohols, propane and butane, and petroleum-based oils. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with strong acids or ketones. The profile itself contributes two sealing bands per contact face rather than one and resistance to the spiral twisting that defeats round-section rings.

Common environments for this compound include general industrial maintenance, agricultural equipment, and construction equipment.

Stocked as QH70347 and sold individually. Unit weight is approximately 9.6925 g. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.