-173 BLACK BUNA 90D O-RING

Part number H90173 is an AS568-173 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 8.487 in (215.57 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 8.693 in (220.8 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.

As a material, Buna-N (Nitrile) delivers the most widely specified general-purpose sealing elastomer, strong abrasion and tear resistance. The compound resists hydraulic fluids, many alcohols, and petroleum-based oils. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C).

Common environments for this compound include automotive, fluid power, and construction equipment.

Reference part number H90173 when ordering; the item is sold individually. Unit weight is approximately 4.9942 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.