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
P42 B-90 N/A
178456 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 41.70 mm1.642 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-42 N/A O-rings are used in the military defense and agriculture industries.
P44 B-70 N/A
178457 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 43.70 mm1.720 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-44 N/A O-rings are used in the military defense and agriculture industries.
P44 B-90 N/A
178458 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 43.70 mm1.720 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-44 N/A O-rings are used in the military defense and agriculture industries.
P45 B-70 N/A
178459 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 44.70 mm1.760 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-45 N/A O-rings are used in the military defense and agriculture industries.
P45 B-90 N/A
178460 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 44.70 mm1.760 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-45 N/A O-rings are used in the military defense and agriculture industries.
P46 B-70 N/A
178461 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 45.70 mm1.799 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-46 N/A O-rings are used in the military defense and agriculture industries.
P46 B-90 N/A
178462 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 45.70 mm1.799 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-46 N/A O-rings are used in the military defense and agriculture industries.
P48 B-70 N/A
178463 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 47.70 mm1.878 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-48 N/A O-rings are used in the military defense and agriculture industries.v
P48 B-90 N/A
178464 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 47.70 mm1.878 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-48 N/A O-rings are used in the military defense and agriculture industries.
P48A B-70 N/A
178465 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 70 N/A 47.60 mm1.874 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-48A N/A O-rings are used in the military defense and agriculture industries.
P48A B-90 N/A
178466 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 90 N/A 47.60 mm1.874 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-48A N/A O-rings are used in the military defense and agriculture industries.
P49 B-70 N/A
178467 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 48.70 mm1.917 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-49 N/A O-rings are used in the military defense and agriculture industries.
P49 B-90 N/A
178468 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 48.70 mm1.917 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-49 N/A O-rings are used in the military defense and agriculture industries.
P5 B-70 N/A
178469 		N/A JIS Standard O-Ring N/A Buna N/A 0.075 in1.90 mm N/A 70 N/A 4.80 mm0.189 in N/A 0.003 in0.09 mm N/A 0.005 in0.12 mm N/A P-5 N/A O-rings are used in the military defense and agriculture industries.
P5 B-90 N/A
178470 		N/A JIS Standard O-Ring N/A Buna N/A 0.075 in1.90 mm N/A 90 N/A 4.80 mm0.189 in N/A 0.003 in0.09 mm N/A 0.005 in0.12 mm N/A P-5 N/A O-rings are used in the military defense and agriculture industries.
P50 B-70 N/A
178471 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 49.70 mm1.957 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-50 N/A O-rings are used in the military defense and agriculture industries.
P50 B-90 N/A
178472 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 49.70 mm1.957 in N/A 0.004 in0.10 mm N/A 0.01 in0.25 mm N/A P-50 N/A O-rings are used in the military defense and agriculture industries.
P50A B-70 N/A
178473 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 70 N/A 49.60 mm1.953 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-50A N/A O-rings are used in the military defense and agriculture industries.
P50A B-90 N/A
178474 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 90 N/A 49.60 mm1.953 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-50A N/A O-rings are used in the military defense and agriculture industries.
P52 B-70 N/A
178475 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 70 N/A 51.60 mm2.031 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-52 N/A O-rings are used in the military defense and agriculture industries.
P52 B-90 N/A
178476 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 90 N/A 51.60 mm2.031 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-52 N/A O-rings are used in the military defense and agriculture industries.
P53 B-70 N/A
178477 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 70 N/A 52.6 mm2.071 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-53 N/A O-rings are used in the military defense and agriculture industries.v
P53 B-90 N/A
178478 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 90 N/A 52.6 mm2.071 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-53 N/A O-rings are used in the military defense and agriculture industries.
P55 B-70 N/A
178479 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 70 N/A 54.60 mm2.150 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-55 N/A O-rings are used in the military defense and agriculture industries.
P55 B-90 N/A
178480 		N/A JIS Standard O-Ring N/A Buna N/A 0.224 in5.70 mm N/A 90 N/A 54.60 mm2.150 in N/A 0.006 in0.15 mm N/A 0.01 in0.25 mm N/A P-55 N/A O-rings are used in the military defense and agriculture industries.
Unit of Measure
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