Boss Seal Kit For SAE Straight Thread Tube Fittings, 212-Piece Buna-N O-Ring Assortment, 20 Sizes, High-Pressure Hydraulic Seals, 90A NBR Buna-N O-Rings, Pro Grade O-Rings That Stay On Hand And Seal Right

High-grade SAE Boss O-Ring Kit for hydraulic sealing
✔️ 212 Buna-N O-rings in 20 sizes, built for high-pressure systems up to 250°F and chemical resistance

This seal kit is a collection of O-rings designed for SAE straight thread tube fittings, typically used in hydraulic and pneumatic setups to keep systems leak-free in machinery, vehicles, and industrial equipment.

✅ 212 pieces total, covering 20 standard sizes for easy access in repairs.
✅ Constructed from 90A Buna-N material for strong extrusion resistance in high-pressure environments.
✅ Works in temperatures from -40°F to +250°F, with resistance to oils, fuels, and acids.
✅ Comes in an organized plastic case for quick selection during field or shop service.

💡 What makes Buna-N O-rings a solid pick for high-pressure sealing jobs?
Buna-N O-rings offer reliable performance in tough conditions.
- Great for handling petroleum-based fluids and hydraulic pressures without failing
- Provide long-lasting durability in pumps and valves to reduce maintenance needs
- Help maintain system efficiency by preventing leaks in various industrial applications
- Easy to install, making them a go-to for techs working on fluid power systems

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