This o-ring is supplied in AS568-238 black Buna-N (Nitrile) 50 Shore A with an inside diameter of 3.484 in (88.49 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 3.762 in (95.55 mm), catalogued under part number H50238. It delivers dependable bidirectional sealing in a compact groove envelope.
Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, low compression set under sustained load. Expect good resistance to water, hydraulic fluids, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Applications involving ketones or polar solvents call for a different compound.
Typical settings include automotive, general industrial maintenance, and construction equipment.
Order part number H50238, sold individually. Nominal inside diameter is listed as 3 1/2 inch. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -238 BLACK BUNA 50D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 3.484 inch (88.49 mm)
Actual Outside Diameter 3.762 inch (95.55 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity