Need some tough, chemical-resistant seals? This 10-pack of PTFE (that's Teflon) O-rings is what you're looking for. They're size 010 according to the standard AS568A aerospace sizing chart, which means they have a 1/4 inch Inside Diameter, a 3/8 inch Outside Diameter, and a 1/16 inch cross-section (width). The material is PTFE, which is famous for handling just about any harsh chemical you can throw at it – fuels, acids, solvents, you name it. It also has an insane temperature range from -328°F up to 500°F. The durometer (hardness) is 55D, which is on the stiffer side, great for high-pressure or vacuum applications where a softer seal might extrude. They're white in color. Perfect for repairing or building fluid and gas systems in automotive, industrial, laboratory, or even some plumbing setups. Just make sure this standard size matches the groove in your application. A reliable, industrial-grade seal solution.
