APG stocks the H90260, an AS568-260 black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 6.484 in (164.69 mm), a cross section of 0.139 in (3.53 mm), and an outside diameter of 6.762 in (171.75 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Buna-N (Nitrile) is valued for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. It resists greases and lubricants, many alcohols, and hydraulic fluids. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C). It is not the right choice where ozone and direct sunlight or automotive brake fluid are present.
It sees regular use in hydraulic and pneumatic systems, agricultural equipment, and fluid power.
Order part number H90260, sold individually. Unit weight is approximately 6.78 g. Review your operating media and conditions against this specification before installation. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
Description -260 BLACK BUNA 90D O-RING
Actual Cross Section 0.139 inch (3.53 mm)
Actual Inside Diameter 6.484 inch (164.69 mm)
Actual Outside Diameter 6.762 inch (171.75 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity