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OneMonroe’s JIS BUNA O-Rings offer superior sealing solutions for various industrial applications, ensuring top-notch reliability and performance in demanding environments. Designed to meet the Japanese Industrial Standards (JIS), these O-rings are manufactured from high-quality BUNA-N (Nitrile) material, known for its exceptional resistance to oils, fuels, and various other chemicals. The precise engineering and careful selection of materials make these O-rings ideal for industries requiring secure seals in automotive, marine, hydraulic, and manufacturing sectors. With a focus on both performance and durability, OneMonroe’s JIS BUNA O-Rings are the perfect choice for applications where robust, long-lasting sealing is essential.

At OneMonroe, quality and consistency are paramount in every product we offer. Our JIS BUNA O-Rings undergo stringent testing and quality assurance procedures to ensure they meet both international standards and the high expectations of our customers. The BUNA-N material used in these O-rings is specially selected for its resilience in extreme temperatures and high-pressure conditions, providing dependable performance in both hot and cold environments. Additionally, OneMonroe’s comprehensive inventory allows us to supply various sizes and specifications of JIS BUNA O-Rings, accommodating both common and unique sealing requirements with ease.

Choosing OneMonroe means selecting a trusted partner in sealing solutions, backed by years of expertise and commitment to excellence. Our JIS BUNA O-Rings provide not only the assurance of high-quality materials but also the peace of mind that comes from using a product engineered for precision and durability. With fast delivery options and a responsive customer support team, OneMonroe is dedicated to providing the best in industrial sealing technology to keep your operations running smoothly and efficiently. Trust OneMonroe’s JIS BUNA O-Rings for a sealing solution that delivers reliable results every time.

For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

JIS O-Rings
Unit of Measure
Items JIS O-Rings
G100 B-70
JIS Buna O-Rings
JIS O-Rings
G100 B-90
JIS Buna O-Rings
JIS O-Rings
G105 B-70
JIS Buna O-Rings
JIS O-Rings
G105 B-90
JIS Buna O-Rings
JIS O-Rings
G110 B-70
JIS Buna O-Rings
Type N/A JIS Standard O-Ring
Material N/A Buna
Cross Section Width N/A 0.122 in3.10 mm
Durometer N/A 70 N/A 90 N/A 70 N/A 90 N/A 70
Inside Diameter N/A 99.40 mm3.913 in N/A 99.40 mm3.913 in N/A 104.40 mm4.110 in N/A 104.40 mm4.110 in N/A 109.40 mm4.307 in
CSW Tolerance N/A 0.004 in0.10 mm
ID Tolerance N/A 0.016 in0.40 mm
JIS Number N/A G-100 N/A G-100 N/A G-105 N/A G-105 N/A G-110
O-Ring Industries N/A O-rings are used in the military defense and agriculture industries.