-912 BLACK BUNA 90D O-RING

Ordered as H90912, this is an AS568-912 black Buna-N (Nitrile) 90 Shore A O-Ring measuring an inside diameter of 0.924 in (23.47 mm), a cross section of 0.116 in (2.95 mm), and an outside diameter of 1.156 in (29.36 mm). The o-ring remains the most cost-effective sealing element available for pressurized assemblies.

This material stands up to propane and butane, hydraulic fluids, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for strong abrasion and tear resistance, the most widely specified general-purpose sealing elastomer. Rated temperature range runs from -40°F (-40°C) to 250°F (121.1°C) in continuous service. It is not the right choice where automotive brake fluid or ketones are present.

Maintenance and OEM teams specify it across automotive, general industrial maintenance, and agricultural equipment.

Reference part number H90912 when ordering; the item is sold individually. Unit weight is approximately 0.7498 g and nominal inside diameter is listed as 3/4 inch. Review your operating media and conditions against this specification before installation.