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Founded in 1941, Parco was the first manufacturer to specialize in O-rings, still one of our primary products. Today, Parco has four modern facilities manufacturing O-rings, custom-molded elastomeric seals, rubber-to-metal bonded parts, and machined metal parts. Our 154,000 square-foot facility in Ontario, California is one of the largest plants in the world making molded rubber seals. Our three other facilities in Texas and Louisiana specialize in complex custom-molded elastomeric products, machined metal parts, and machined plastics.

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Nitrile

Parco Viton

Flurocarbon

Flurocarbon 9500-75 is general-purpose 75-durometer fluorocarbon having excellent resistance to compression set and low cost.

Flurocarbon 9500-75

Nitrile 2295-70 is Resists fuels rich in alcohol better than 4200-70 general-purpose nitrile seals; UL-listed for gasoline, diesel fuel, kerosene, naphtha and   alcohol blends with up to 15% ethanol and methanol concentrations, high ACN content for very low swell in fuels; compound not recommended for hot air or ATF.

Nitrile 2295-70

Flurocarbon 9167-60 is fluorocarbon seal designed for low-pressure applications requiring broad chemical resistance at low temperatures. Parco 9167-60 seals are suitable for static applications ranging from -65 to +450°F and dynamic applications ranging from -40 to +450°F.

Flurocarbon 9167-60

Nitrile 4200-70 is nitrile seal ideal for use in a variety of applications.Parco 4200-70 seals are suitable for applications ranging from -35 to +250°F.

Nitrile 4200-70

Nitrile 4262-75 is a excellent compatibility with drilling muds and petroleum oils; withstands service demands of heavy equipment hydraulic systems; Parco’s lowest compression-set, sulfur-cure nitrile.

Nitrile 4262-75

Nitrile 0209-70 is a high ACN content with low plasticizer level provides excellent resistance to petroleum oils, automatic transmission fluid (ATF), and crude oil; formulated as a transfer-moldable variant of Parco general-purpose nitrile 4200-70 for producing thick cross-section custom molded parts; used extensively in oil tool seals and packing elements for pressures to 1,500 psi.

Nitrile 0209-70

Nitrile 4465-65 is formulated expressly for use in low-temperature aviation fuel systems; low ACN content enables compounds to meet requirements of Aerospace Materials Specification (AMS) 7271, QPL listed, including passing low-temperature fuel seal test at -65°F.

Nitrile 4465-65

Nitrile 0228-70 is seal which meets the critical requirements of the motor vehicle industry to ensure vehicle safety and performance.

Nitrile 0228-70

Flurocarbon 9162-95 is 95-durometer fluorocarbon having excellent resistance to compression set, and excellent resistance to explosive decompression and extrusion.

Flurocarbon 9162-95

Parco

Founded in 1941, Parco was the first manufacturer to specialize in O-rings, still one of our primary products. Today, Parco has four modern facilities manufacturing O-rings, custom-molded elastomeric 

Parco - O-Rings - Elastomeric Seals - Machined Metal Parts

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