Parker® N0674 2-329 O-Ring, 1.975 in ID, 0.21 in Thick, Acrylonitrile Butadiene Rubber

Parker nitrile rubber is the general term for acrylonitrile butadiene copolymer. The acrylonitrile content of nitrile sealing compounds varies considerably (18 to 50%) and influences the physical properties of the finished material. The higher the acrylonitrile content, the better the resistance to oil and fuel. At the same time, elasticity and resistance to compression set is adversely affected. In view of these opposing realities, a compromise is often drawn, and a medium acrylonitrile content selected. NBR has good mechanical properties when compared with other elastomers and high wear resistance. NBR is not resistant to weathering and ozone.

FEATURES
• Heat-resistance
• Cold flexibility
• Chemical-resistance
• Parker® silicone O-rings are very compatible with oil and grease

TECHNICAL INFORMATION
• MIL/Aero MIL-G-21569B Class I Specified
• UL-Fire, UL-GasAlc, UL-MPSGas, UL-NatGas, UL-Fuel Oil, UL-HtdFuelOil, UL-Ammonia, UL-DryChem Listed

SPECIFICATIONS
• Inside Diameter: 1.975 in
• Thickness: 0.21 in
• Durometer: 70 Shore A
• Temperature Rating: -30 to 250 deg F
• Material: Acrylonitrile Butadiene Rubber
• Color: Black
• Shelf Life: 5475  days
• Suitable For Use With: Aircraft Engines
• Domestic/Import: Import

APPLICATIONS
• General-Purpose