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Square O-rings Buna

Square Orings also known as Tetraseals® or lathe-cut rings - Buna-N -Duro 70

Standard grades of NBR are typically resistant to mineral oil-based lubricants and greases, many grades of hydraulic fluids, aliphatic hydrocarbons, silicone oils and greases and water to about 80°C.

GENERAL TEMPERATURE RANGE: -40° to +212° F

Pick your cross section below - Available volume discounts are listed in each item description.


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Welcome to The O-ring Store, where you can find a huge online selection of O-Rings, Hydraulic Seals, O-Ring Kits and accessories. We ship all our stock items and factory stock items to get O-Rings in your hands before most seal suppliers even pack your order.
We make getting O-rings easy!

Other great sites - Kinneys Auto Works LLC - SideXSide Visions - The Tool Repair Shop - The O-Ring Store LLC for all your O-Rings