The H50033 is an AS568-033 black Buna-N (Nitrile) 50 Shore A O-Ring with an inside diameter of 1.989 in (50.52 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 2.129 in (54.08 mm). This o-ring compresses into its gland to block fluid or gas migration across a joint.
Buna-N (Nitrile) is specified here for strong abrasion and tear resistance, most widely specified general-purpose sealing elastomer. This material stands up to petroleum-based oils, water, and propane and butane. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C).
Maintenance and OEM teams specify it across hydraulic and pneumatic systems, construction equipment, and agricultural equipment.
Stocked as H50033 and sold individually. Nominal inside diameter is listed as 2 inch. Review your operating media and conditions against this specification before installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.
Description -033 BLACK BUNA 50D O-RING
Actual Cross Section 0.07 inch (1.78 mm)
Actual Inside Diameter 1.989 inch (50.52 mm)
Actual Outside Diameter 2.129 inch (54.08 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity