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
S12 B-70 N/A
178531 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 70 N/A 11.50 mm0.453 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-12 N/A O-rings are used in the military defense and agriculture industries.
S12 B-90 N/A
178532 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 90 N/A 11.50 mm0.453 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-12 N/A O-rings are used in the military defense and agriculture industries.
S12.5 B-70 N/A
178533 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 70 N/A 12.00 mm0.472 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-12.5 N/A O-rings are used in the military defense and agriculture industries.v
S12.5 B-90 N/A
178534 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 90 N/A 12.00 mm0.472 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-12.5 N/A O-rings are used in the military defense and agriculture industries.
S120 B-70 N/A
178535 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 119.50 mm4.705 in N/A 0.004 in0.09 mm N/A 0.016 in0.40 mm N/A S-120 N/A O-rings are used in the military defense and agriculture industries.
S120 B-90 N/A
178536 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 119.50 mm4.705 in N/A 0.004 in0.09 mm N/A 0.016 in0.40 mm N/A S-120 N/A O-rings are used in the military defense and agriculture industries.
S125 B-70 N/A
178537 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 124.50 mm4.902 in N/A 0.004 in0.09 mm N/A 0.016 in0.40 mm N/A S-125 N/A O-rings are used in the military defense and agriculture industries.
S125 B-90 N/A
178538 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 124.50 mm4.902 in N/A 0.004 in0.09 mm N/A 0.016 in0.40 mm N/A S-125 N/A O-rings are used in the military defense and agriculture industries.
S130 B-70 N/A
178539 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 129.50 mm5.098 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-130 N/A O-rings are used in the military defense and agriculture industries.
S130 B-90 N/A
178540 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 129.50 mm5.098 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-130 N/A O-rings are used in the military defense and agriculture industries.
S132 B-70 N/A
178541 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 131.50 mm5.177 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-132 N/A O-rings are used in the military defense and agriculture industries.
S132 B-90 N/A
178542 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 131.50 mm5.177 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-132 N/A O-rings are used in the military defense and agriculture industries.
S135 B-70 N/A
178543 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 134.50 mm5.295 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-135 N/A O-rings are used in the military defense and agriculture industries.
S135 B-90 N/A
178544 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 134.50 mm5.295 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-135 N/A O-rings are used in the military defense and agriculture industries.
S14 B-70 N/A
178545 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 70 N/A 13.50 mm0.531 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-14 N/A O-rings are used in the military defense and agriculture industries.v
S14 B-90 N/A
178546 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 90 N/A 13.50 mm0.531 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-14 N/A O-rings are used in the military defense and agriculture industries.
S140 B-70 N/A
178547 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 139.50 mm5.492 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-140 N/A O-rings are used in the military defense and agriculture industries.
S140 B-90 N/A
178548 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 139.50 mm5.492 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-140 N/A O-rings are used in the military defense and agriculture industries.
S145 B-70 N/A
178549 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 144.50 mm5.689 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-145 N/A O-rings are used in the military defense and agriculture industries.
S145 B-90 N/A
178550 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 144.50 mm5.689 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-145 N/A O-rings are used in the military defense and agriculture industries.
S15 B-70 N/A
178551 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 70 N/A 14.5 mm0.571 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-15 N/A O-rings are used in the military defense and agriculture industries.
S15 B-90 N/A
178552 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 90 N/A 14.5 mm0.571 in N/A 0.004 in0.08 mm N/A 0.006 in0.15 mm N/A S-15 N/A O-rings are used in the military defense and agriculture industries.
S150 B-70 N/A
178553 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 70 N/A 149.50 mm5.886 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-150 N/A O-rings are used in the military defense and agriculture industries.
S150 B-90 N/A
178554 		N/A JIS Standard O-Ring N/A Buna N/A 0.079 in2.00 mm N/A 90 N/A 149.50 mm5.886 in N/A 0.004 in0.09 mm N/A 0.024 in0.60 mm N/A S-150 N/A O-rings are used in the military defense and agriculture industries.
S16 B-70 N/A
178555 		N/A JIS Standard O-Ring N/A Buna N/A 0.059 in1.50 mm N/A 70 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.
Unit of Measure
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