.500" C/S (1/2") (12.70 MM)

This o-ring cord stock is supplied in black Buna-N (Nitrile) 50 Shore A supplied with a cross section of 0.5 in (12.7 mm), catalogued under part number 0284S500. It eliminates long lead times on large-diameter custom rings.

Buna-N (Nitrile) is specified for the most widely specified general-purpose sealing elastomer and low compression set under sustained load. The compound resists greases and lubricants, hydraulic fluids, and water. It is not the right choice where automotive brake fluid or ketones are present.

Maintenance and OEM teams specify it across general industrial maintenance, construction equipment, and automotive.

0284S500 ships by the foot. 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.