Ordered as H90376, this is an AS568-376 black Buna-N (Nitrile) 90 Shore A O-Ring supplied with an inside diameter of 9.725 in (247.02 mm), a cross section of 0.21 in (5.33 mm), and an outside diameter of 10.145 in (257.68 mm). The o-ring seats in a machined groove and forms a leak-tight barrier when compressed between two mating surfaces.
Buna-N (Nitrile) is specified here for low compression set under sustained load, strong abrasion and tear resistance. The compound resists hydraulic fluids, petroleum-based oils, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). Verify compatibility before use with polar solvents or ozone and direct sunlight.
You will find this material specified across construction equipment, agricultural equipment, and general industrial maintenance.
Order part number H90376, sold individually. Nominal inside diameter is listed as 9 3/4 inch. Application requirements vary, so validate compatibility with your process conditions prior to installation. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.
description -376 BLACK BUNA 90D O-RING
uf_description2 0.210" (5.33MM) CS X 9.725" (247.01MM) ID
Actual_CS 0.21 inch (5.33 mm)
Actual_ID 9.725 inch (247.02 mm)
Actual_OD 10.145 inch (257.68 mm)
ProductCode Description O-Rings - Bulk - Commodity