Monroe
OneMonroe
Locations Throughout the Country
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Tel: (877) 740-2007
Fax: (800) 453-9683
Email: sales@askmonroe.com
Website: monroeengineering.com
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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
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

ID Tolerance

JIS Number

O-Ring Industries

Quantity
S16 B-90 N/A
178556 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 90 N/A 15.50 mm0.610 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-16 N/A O-rings are used in the military defense and agriculture industries.
S18 B-70 N/A
178557 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 70 N/A 17.50 mm0.689 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-18 N/A O-rings are used in the military defense and agriculture industries.
S18 B-90 N/A
178558 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 90 N/A 17.50 mm0.689 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-18 N/A O-rings are used in the military defense and agriculture industries.
S20 B-70 N/A
178559 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 70 N/A 19.50 mm0.768 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-20 N/A O-rings are used in the military defense and agriculture industries.v
S20 B-90 N/A
178560 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 90 N/A 19.50 mm0.768 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-20 N/A O-rings are used in the military defense and agriculture industries.
S22 B-70 N/A
178561 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 70 N/A 21.50 mm0.846 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-22 N/A O-rings are used in the military defense and agriculture industries.
S22 B-90 N/A
178562 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 90 N/A 21.50 mm0.846 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-22 N/A O-rings are used in the military defense and agriculture industries.
S22.4 B-70 N/A
178563 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 21.90 mm0.862 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-22.4 N/A O-rings are used in the military defense and agriculture industries.
S22.4 B-90 N/A
178564 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 21.90 mm0.862 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-22.4 N/A O-rings are used in the military defense and agriculture industries.
S24 B-70 N/A
178565 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 23.5 mm0.925 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-24 N/A O-rings are used in the military defense and agriculture industries.
S24 B-90 N/A
178566 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 23.5 mm0.925 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-24 N/A O-rings are used in the military defense and agriculture industries.
S25 B-70 N/A
178567 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 24.50 mm0.965 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-25 N/A O-rings are used in the military defense and agriculture industries.
S25 B-90 N/A
178568 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 24.50 mm0.965 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-25 N/A O-rings are used in the military defense and agriculture industries.
S26 B-70 N/A
178569 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 25.50 mm1.004 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-26 N/A O-rings are used in the military defense and agriculture industries.
S26 B-90 N/A
178570 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 25.50 mm1.004 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-26 N/A O-rings are used in the military defense and agriculture industries.
S28 B-70 N/A
178571 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 27.50 mm1.083 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-28 N/A O-rings are used in the military defense and agriculture industries.
S28 B-90 N/A
178572 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 27.50 mm1.083 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-28 N/A O-rings are used in the military defense and agriculture industries.
S29 B-70 N/A
178573 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 28.50 mm1.122 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-29 N/A O-rings are used in the military defense and agriculture industries.
S29 B-90 N/A
178574 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 28.50 mm1.122 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-29 N/A O-rings are used in the military defense and agriculture industries.v
S3 B-70 N/A
178575 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 70 N/A 2.50 mm0.098 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-3 N/A O-rings are used in the military defense and agriculture industries.
S3 B-90 N/A
178576 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 90 N/A 2.50 mm0.098 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-3 N/A O-rings are used in the military defense and agriculture industries.
S30 B-70 N/A
178577 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 29.50 mm1.161 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-30 N/A O-rings are used in the military defense and agriculture industries.
S30 B-90 N/A
178578 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 29.50 mm1.161 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-30 N/A O-rings are used in the military defense and agriculture industries.
S31.5 B-70 N/A
178579 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 31.00 mm1.220 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-31.5 N/A O-rings are used in the military defense and agriculture industries.
S31.5 B-90 N/A
178580 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 31.00 mm1.220 in N/A 0.004 in0.09 mm N/A 0.006 in0.15 mm N/A S-31.5 N/A O-rings are used in the military defense and agriculture industries.
Unit of Measure
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