APG stocks the H50374, an AS568-374 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 9.225 in (234.32 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 9.645 in (244.98 mm). An o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, low compression set under sustained load. Expect good resistance to hydraulic fluids, water, and many alcohols. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. Applications involving strong acids or ketones call for a different compound.
You will find this material specified across hydraulic and pneumatic systems, agricultural equipment, and fluid power.
Stocked as H50374 and sold individually. Nominal inside diameter is listed as 9 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application.
description -374 BLACK BUNA 50D O-RING
uf_description2 0.210" (5.33MM) CS X 9.225" (234.32MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 9.225 inch (234.32 mm)
Actual_OD 9.645 inch (244.98 mm)
ProductCode Description O-Rings - Bulk - Commodity