We at MSO Seals and Gaskets offer high quality O Ring and Back up Ring Mechanical Seals in United States, We also manufacture customized O-Rings in any dimension out of any material you need. If you are looking for the best O-Ring Manufacturers in USA, look no further. We can manufacture any o-ring up to 2 meters in diameter fast including NBR, HNBR, Silicone, EPDM, Viton®, Aflas, Teflon® and polyurethane.

Standard, Metric and Custom O-Rings

We carry any size of O-ring. We also have the capability of custom making any size and material.

Nitrile (NBR) 70 : The most common elastomer used for indus-trial grade O-rings. Compatible with most mineral based hydrau-lic fluids with a working temperature range from -40°C to 110°C.

Nitrile (NBR) 90 : Harder than Nitrile 70 and hence suitable for use as a high pressure O-ring or back up washer.

Viton® 75 : Possessing the broadest chemical compatibility of any mainstream elastomer, its broad working temperature range of -35°C to 205°C and excellent mechanical properties make this an excellent high performance compound for use in hydraulic systems.

Types of O-rings:

• American standard size o-ring (Inch Sizes)
• Metric O-rings
• O-ring cord
• O-ring kit and assortment
• Encapsulated o-rings
• Square cut ring
• Four-sided rings