Part number H70329 is an AS568-329 black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 1.975 in (50.17 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 2.395 in (60.83 mm). An o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) delivers low compression set under sustained load, strong abrasion and tear resistance. It resists greases and lubricants, hydraulic fluids, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to automotive brake fluid or strong acids will shorten service life.
Common environments for this compound include construction equipment, agricultural equipment, and fluid power.
Stocked as H70329 and sold individually. Unit weight is approximately 4.758 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -329 BLACK BUNA 70D O-RING
Actual Cross Section 0.21 inch (5.33 mm)
Actual Inside Diameter 1.975 inch (50.17 mm)
Actual Outside Diameter 2.395 inch (60.83 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity