Ordered as H90417, this is an AS568-417 black Buna-N (Nitrile) 90 Shore A O-Ring with an inside diameter of 3.475 in (88.27 mm), a cross section of 0.275 in (6.99 mm), and an outside diameter of 4.025 in (102.24 mm). The o-ring creates a positive seal at flange, piston and rod interfaces without added hardware.
Buna-N (Nitrile) is specified here for low compression set under sustained load and most widely specified general-purpose sealing elastomer. This material stands up to greases and lubricants, water, and petroleum-based oils. Service temperature is rated from -40°F (-40°C) through 250°F (121.1°C).
Maintenance and OEM teams specify it across automotive, agricultural equipment, and fluid power.
Order part number H90417, sold individually. Unit weight is approximately 15.953 g. Confirm chemical compatibility, pressure and temperature against your own application requirements before installing.
Description -417 BLACK BUNA 90D O-RING
Actual Cross Section 0.275 inch (6.99 mm)
Actual Inside Diameter 3.475 inch (88.27 mm)
Actual Outside Diameter 4.025 inch (102.24 mm)
Measurement System Imperial
Product Category O-Rings - Bulk - Commodity