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
P290 B-90 N/A
178406 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 90 N/A 289.50 mm11.398 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-290 N/A O-rings are used in the military defense and agriculture industries.
P295 B-70 N/A
178407 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 70 N/A 294.50 mm11.594 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-295 N/A O-rings are used in the military defense and agriculture industries.
P295 B-90 N/A
178408 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 90 N/A 294.50 mm11.594 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-295 N/A O-rings are used in the military defense and agriculture industries.
P30 B-70 N/A
178409 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 29.70 mm1.169 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-30 N/A O-rings are used in the military defense and agriculture industries.
P30 B-90 N/A
178410 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 29.70 mm1.169 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-30 N/A O-rings are used in the military defense and agriculture industries.v
P300 B-70 N/A
178411 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 70 N/A 299.50 mm11.791 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-300 N/A O-rings are used in the military defense and agriculture industries.
P300 B-90 N/A
178412 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 90 N/A 299.50 mm11.791 in N/A 0.006 in0.18 mm N/A 0.031 in0.80 mm N/A P-300 N/A O-rings are used in the military defense and agriculture industries.
P31 B-70 N/A
178413 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 30.70 mm1.209 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-31 N/A O-rings are used in the military defense and agriculture industries.
P31 B-90 N/A
178414 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 30.70 mm1.209 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-31 N/A O-rings are used in the military defense and agriculture industries.
P31.5 B-70 N/A
178415 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 31.20 mm1.228 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-31.5 N/A O-rings are used in the military defense and agriculture industries.
P31.5 B-90 N/A
178416 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 31.20 mm1.228 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-31.5 N/A O-rings are used in the military defense and agriculture industries.
P315 B-70 N/A
178417 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 70 N/A 314.50 mm12.382 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-315 N/A O-rings are used in the military defense and agriculture industries.
P315 B-90 N/A
178418 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 90 N/A 314.50 mm12.382 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-315 N/A O-rings are used in the military defense and agriculture industries.
P32 B-70 N/A
178419 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 31.70 mm1.248 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-32 N/A O-rings are used in the military defense and agriculture industries.
P32 B-90 N/A
178420 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 31.70 mm1.248 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-32 N/A O-rings are used in the military defense and agriculture industries.
P320 B-70 N/A
178421 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 70 N/A 319.50 mm12.579 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-320 N/A O-rings are used in the military defense and agriculture industries.
P320 B-90 N/A
178422 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 90 N/A 319.50 mm12.579 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-320 N/A O-rings are used in the military defense and agriculture industries.v
P335 B-70 N/A
178423 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 70 N/A 334.50 mm13.169 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-335 N/A O-rings are used in the military defense and agriculture industries.
P335 B-90 N/A
178424 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 90 N/A 334.50 mm13.169 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-335 N/A O-rings are used in the military defense and agriculture industries.
P34 B-70 N/A
178425 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 33.70 mm1.327 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-34 N/A O-rings are used in the military defense and agriculture industries.
P34 B-90 N/A
178426 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 33.70 mm1.327 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-34 N/A O-rings are used in the military defense and agriculture industries.
P340 B-70 N/A
178427 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 70 N/A 339.50 mm13.366 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-340 N/A O-rings are used in the military defense and agriculture industries.
P340 B-90 N/A
178428 		N/A JIS Standard O-Ring N/A Buna N/A 0.331 in8.40 mm N/A 90 N/A 339.50 mm13.366 in N/A 0.006 in0.18 mm N/A 0.039 in1.00 mm N/A P-340 N/A O-rings are used in the military defense and agriculture industries.
P35 B-70 N/A
178429 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 70 N/A 34.70 mm1.366 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-35 N/A O-rings are used in the military defense and agriculture industries.
P35 B-90 N/A
178430 		N/A JIS Standard O-Ring N/A Buna N/A 0.138 in3.50 mm N/A 90 N/A 34.70 mm1.366 in N/A 0.004 in0.10 mm N/A 0.006 in0.15 mm N/A P-35 N/A O-rings are used in the military defense and agriculture industries.
Unit of Measure
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