QH70213 is an AS568-213 black Buna-N (Nitrile) 70 Shore A Quad-Ring with an inside diameter of 0.921 in (23.39 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 1.199 in (30.45 mm). In service, this quad-ring seats in a standard o-ring gland while offering improved dynamic performance.
As a material, Buna-N (Nitrile) is valued for low compression set under sustained load, reliable performance in both static and dynamic service. The material holds up against hydraulic fluids, petroleum-based oils, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. The profile itself contributes a parting line located away from the sealing surface and resistance to the spiral twisting that defeats round-section rings.
It sees regular use in automotive, agricultural equipment, and general industrial maintenance.
QH70213 ships individually. Unit weight is approximately 0.99 g. Check the compound against your process media, pressure and temperature before committing to a design.
Description Q-213 BUNA 70 Q RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 0.921 inch (23.39 mm)
Actual Outside Diameter 1.199 inch (30.45 mm)
Measurement System Imperial
Product Category O-Rings - Square/Quad - Commodity