NBRINGO 697 PCS AC O Ring Kit

NBRINGO’s 697-piece A/C O-ring kit supplies a full range of green NBR seals and four pick-and-hook tools for fast, reliable automotive air-conditioning line and compressor repairs.

This compact, clear-partition case organizes 36 commonly used O-ring sizes in both metric and SAE measurements, so you can identify and install the correct seal quickly. The rings are molded from oil- and refrigerant-resistant NBR material and are compatible with common refrigerants such as R134a and R12. The included pick-and-hook tools help remove old seals and seat new ones without damaging fittings or hoses.

Which seals are included and how are they organized?

The kit contains 697 pieces across 36 different sizes, arranged in individual compartments inside a durable plastic case. Sizes cover both metric and SAE diameters so you’ll likely have the right O-ring for most passenger vehicle A/C fittings. A printed size chart or compartment labels make finding the correct ring quick during a repair.

• 36 size options spanning common compressor and A/C line fittings
• Both metric and SAE measurements included
• Clear plastic case with labeled compartments for fast identification

How does the material hold up to refrigerants and oils?

The green O-rings are made of NBR (nitrile butadiene rubber), a material widely used in automotive seals for its resistance to oils, refrigerants, and moderate temperatures. NBR provides reliable sealing for typical R134a and R12 service environments, reducing the risk of leaks when installed correctly. While suitable for most common refrigerants, confirm compatibility for extreme temperature or specialty refrigerant systems.

• NBR compound resists automotive oils and common refrigerants
• Designed for repeated installation in standard A/C systems
• Not intended for specialty refrigerants without compatibility checks

What tools are included and how do they help the repair?

The kit supplies four pick-and-hook tools in varying tips to safely remove old O-rings and help position new ones without scratching fittings or damaging hoses. These tools make it easier to access tight spaces and ensure a proper seat for the seal, which is critical to stop leaks. Durable handles and corrosion-resistant tips improve longevity on the workbench or in a service van.

• Four ergonomic pick-and-hook tools for removal and installation
• Different tip shapes for blind or recessed fittings
• Helps prevent damage to mating surfaces during seal replacement

Will this kit fit my vehicle’s A/C components?

The broad size range and dual measurement system make this kit suitable for most passenger cars, light trucks, and many older systems that use R12 or R134a refrigerants. It’s ideal for servicing compressors, service ports, service valve fittings, and A/C lines. For rare or heavy-duty vehicles, compare the specific O-ring dimensions needed with the kit’s size list before purchasing.

• Compatible with most passenger vehicles and light trucks
• Ideal for compressor fittings, O-ring hose ends, and valve connections
• Check vehicle-specific dimensions for uncommon or heavy-duty systems

Who is this for? This NBRINGO set is built for DIYers, home mechanics, and professional technicians who need a comprehensive, portable assortment of oil-resistant O-rings and dependable pick tools. It’s especially useful for anyone who services A/C systems frequently or wants to keep a full range of spare seals on hand to reduce downtime during repairs.