H70346 is an AS568-346 black Buna-N (Nitrile) 70 Shore A O-Ring built to an inside diameter of 4.1 in (104.14 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 4.52 in (114.81 mm). In service, this o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and low compression set under sustained load. The material holds up against greases and lubricants, petroleum-based oils, and water. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). Exposure to strong acids or automotive brake fluid will shorten service life.
It sees regular use in agricultural equipment, construction equipment, and hydraulic and pneumatic systems.
H70346 ships individually. Unit weight is approximately 9.365 g. Check the compound against your process media, pressure and temperature before committing to a design.
Description -346 BLACK BUNA 70D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 4.1 inch (104.14 mm)
Actual Outside Diameter 4.52 inch (114.81 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity