Buna 70-3mmCSx33mmID-Black-Pk25

APG stocks the SB-H3X33-25, a black Buna-N (Nitrile) 70 Shore A O-Ring with an inside diameter of 33 mm (1.299 in), a cross section of 3 mm (0.118 in), and an outside diameter of 39 mm (1.54 in). An o-ring delivers dependable bidirectional sealing in a compact groove envelope. The catalog record notes: 33MMIDX3MMCS.

As a material, Buna-N (Nitrile) is known for an economical choice for high-volume maintenance programs and the most widely specified general-purpose sealing elastomer. Expect good resistance to propane and butane, many alcohols, and hydraulic fluids. Continuous operating temperature is published at -40°F (-40°C) to 250°F (121.1°C). Exposure to strong acids or polar solvents will shorten service life.

It sees regular use in construction equipment, agricultural equipment, and fluid power.

Stocked as SB-H3X33-25 and sold by the bag. Review your operating media and conditions against this specification before installation.