APG stocks the H50026, an AS568-026 black Buna-N (Nitrile) 50 Shore A O-Ring supplied with an inside diameter of 1.239 in (31.47 mm), a cross section of 0.07 in (1.78 mm), and an outside diameter of 1.379 in (35.03 mm). An o-ring provides a reliable static or dynamic seal by deforming into its gland under assembly load.
As a material, Buna-N (Nitrile) is valued for strong abrasion and tear resistance, low compression set under sustained load. The material holds up against many alcohols, propane and butane, and water. The material carries a published service range of -40°F (-40°C) to 250°F (121.1°C). It should not be specified for service in automotive brake fluid or polar solvents.
Maintenance and OEM teams specify it across general industrial maintenance, agricultural equipment, and construction equipment.
Stocked as H50026 and sold individually. Nominal inside diameter is listed as 1 1/4 inch. As always, verify media compatibility and operating conditions against the requirements of your specific application. APG supports cross-referencing from drawings, samples and competitor numbers when a listed size is not an exact fit.
description -026 BLACK BUNA 50D O-RING
uf_description2 0.070" (1.78MM) CS X 1.239" (31.47MM) ID
Actual_CS 0.07 inch (1.78 mm)
Actual_ID 1.239 inch (31.47 mm)
Actual_OD 1.379 inch (35.03 mm)
ProductCode Description O-Rings - Bulk - Commodity