-131 BLACK BUNA 90D O-RING

APG stocks the H90131, an AS568-131 black Buna-N (Nitrile) 90 Shore A O-Ring built to an inside diameter of 1.674 in (42.52 mm), a cross section of 0.103 in (2.62 mm), and an outside diameter of 1.88 in (47.75 mm). An o-ring delivers dependable bidirectional sealing in a compact groove envelope.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer, reliable performance in both static and dynamic service. Expect good resistance to water, hydraulic fluids, and petroleum-based oils. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Exposure to polar solvents or automotive brake fluid will shorten service life.

Maintenance and OEM teams specify it across agricultural equipment, general industrial maintenance, and hydraulic and pneumatic systems.

Reference part number H90131 when ordering; the item is sold individually. Unit weight is approximately 1.0867 g. Review your operating media and conditions against this specification before installation.