H50244 is an AS568-244 black Buna-N (Nitrile) 50 Shore A O-Ring measuring an inside diameter of 4.234 in (107.54 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 4.512 in (114.6 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified here for economical choice for high-volume maintenance programs, strong abrasion and tear resistance. The material holds up against greases and lubricants, many alcohols, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It should not be specified for service in automotive brake fluid or strong acids.
You will find this material specified across automotive, hydraulic and pneumatic systems, and general industrial maintenance.
This item is sold individually under part number H50244. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
Description -244 BLACK BUNA 50D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 4.234 inch (107.54 mm)
Actual Outside Diameter 4.512 inch (114.6 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity