This quad-ring is supplied in AS568-048 black Buna-N (Nitrile) 70 Shore A quad profile built to an inside diameter of 4.739 in (120.37 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 4.879 in (123.93 mm), catalogued under part number QH70048. It seats in a standard o-ring gland while offering improved dynamic performance.
Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs and low compression set under sustained load. This material stands up to greases and lubricants, propane and butane, and hydraulic fluids. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).
It sees regular use in general industrial maintenance, construction equipment, and fluid power.
This item is sold individually under part number QH70048. Unit weight is approximately 1.1963 g and nominal inside diameter is listed as 4 3/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description Q-048 BUNA 70 Q RING
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 4.739 inch (120.37 mm)
Actual_OD 4.879 inch (123.93 mm)
ProductCode Description O-Rings - Square/Quad - Commodity