H50235 is an AS568-235 black Buna-N (Nitrile) 50 Shore A O-Ring measuring an inside diameter of 3.109 in (78.97 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.387 in (86.03 mm). In service, this o-ring delivers dependable bidirectional sealing in a compact groove envelope.
Expect good resistance to hydraulic fluids, water, and propane and butane. That behavior comes from the compound itself: Buna-N (Nitrile) is specified for reliable performance in both static and dynamic service, strong abrasion and tear resistance. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service.
You will find this material specified across fluid power, hydraulic and pneumatic systems, and agricultural equipment.
This item is sold individually under part number H50235. Nominal inside diameter is listed as 3 1/8 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.
description -235 BLACK BUNA 50D O-RING
uf_description2 0.139" (3.53MM) CS X 3.109" (78.97MM) ID
Actual_CS 0.139 inch (3.53 mm)
Actual_ID 3.109 inch (78.97 mm)
Actual_OD 3.387 inch (86.03 mm)
ProductCode Description O-Rings - Bulk - Commodity