-104 BLACK BUNA 90D O-RING

Part number H90104 is an AS568-104 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 0.112 in (2.84 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 0.318 in (8.08 mm). An o-ring compresses into its gland to block fluid or gas migration across a joint.

The material holds up against water, propane and butane, and many alcohols. That behavior comes from the compound itself: Buna-N (Nitrile) is valued for an economical choice for high-volume maintenance programs, reliable performance in both static and dynamic service. Published continuous service range is -40°F (-40°C) to 250°F (121.1°C).

Maintenance and OEM teams specify it across hydraulic and pneumatic systems, automotive, and construction equipment.

Stocked as H90104 and sold individually. Unit weight is approximately 0.125 g and nominal inside diameter is listed as 1/8 inch. Review your operating media and conditions against this specification before installation. If you need a size, durometer or compound that is not listed, APG can cross-reference from a print, a sample or a competitor part number.