Stone River Products Industrial Square Buna-N Duro 70 Kit – 436 Pieces, 36 Sizes (Lathe Square Cut Washer Rings/O-Rings)

Stone River Products Industrial Square Buna-N Duro 70 Kit – 436 Pieces, 36 Sizes (Lathe Square Cut Washer Rings/O-Rings)

• 6 Popular AS568 Square-Ring Sizes (436 Total Pieces) Stocked assortment of square cross-section O-rings from AS568 -006 through -220, giving you the small-to-mid inch sizes most used in industrial service and repair.
• Square Cross-Section = More Stable Sealing Square-rings (Square O-Rings / Lathe Cut Square Washer Rings) are interchangeable with standard AS568 O-rings in most glands, while offering improved resistance to rolling or twisting in dynamic or static seals.
• Buna-N (NBR) 70 Duro – The Industrial Standard Made from sulfur-cured Buna-N Nitrile, 70 Shore A, black. Excellent resistance to petroleum oils, hydrocarbon fuels, hydraulic fluids, and many lubricants, plus strong abrasion and tensile properties.
• Wide Operating Temperature Range Reliable sealing performance from -40°F to +250°F (-40°C to +121°C) for shop, field, and maintenance environments.
• Organized Case for Fast Size Selection Sorted in a labeled compartment case so techs can grab the right dash size quickly—perfect for service trucks, toolboxes, and maintenance benches.