The H90319 is an AS568-319 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 1.037 in (26.34 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 1.457 in (37.01 mm). This o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
As a material, Buna-N (Nitrile) delivers low compression set under sustained load and an economical choice for high-volume maintenance programs. This material stands up to many alcohols, propane and butane, 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 automotive brake fluid or ozone and direct sunlight are present.
You will find this material specified across fluid power, automotive, and agricultural equipment.
Order part number H90319, sold individually. Unit weight is approximately 3.1282 g. Application requirements vary, so validate compatibility with your process conditions prior to installation.
Description -319 BLACK BUNA 90D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 1.037 inch (26.34 mm)
Actual Outside Diameter 1.457 inch (37.01 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity