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 BUNA O-Rings are engineered to provide dependable sealing solutions for a wide range of industrial applications. Crafted from high-quality BUNA-N material, also known as Nitrile, these O-rings deliver exceptional resistance to oils, fuels, and various chemicals, making them a top choice for machinery, automotive, and hydraulic systems. Their robust design ensures a reliable seal in both low and high-pressure environments, protecting against leaks, contamination, and wear. Each O-ring is manufactured to precise industry standards, offering a secure fit and lasting performance that businesses can depend on in even the most demanding conditions.

Our selection of BUNA O-rings includes an extensive variety of sizes and specifications, designed to suit a wide array of sealing needs. From small to large diameters, OneMonroe provides O-rings that can be used across multiple industries, including aerospace, manufacturing, and construction. These O-rings are versatile, supporting applications that require excellent abrasion resistance and the ability to perform reliably in temperatures ranging from -40°F to 212°F. OneMonroe BUNA O-Rings are known for their compatibility with petroleum-based fluids and are often the go-to choice for applications involving oil and gas, where durability and flexibility are essential.

OneMonroe is dedicated to delivering high-quality, cost-effective solutions that meet the unique needs of its customers. Our BUNA O-rings undergo rigorous testing and quality control to ensure each product meets strict performance standards. Whether you’re in need of O-rings for maintenance, repair, or original equipment manufacturing, OneMonroe's BUNA O-rings provide a dependable, long-lasting solution. With a commitment to exceptional customer service, Monroe ensures you have access to the precise sealing products you need to keep your operations running smoothly.

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

BS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

BS Number

Quantity
BS473 B-90 N/A
184418 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 23.940 in608.08 mm N/A 0.006 in0.15 mm N/A -473
BS472 B-70 N/A
184419 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 22.940 in582.68 mm N/A 0.006 in0.15 mm N/A -472
BS472 B-90 N/A
184420 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 22.940 in582.68 mm N/A 0.006 in0.15 mm N/A -472
BS471 B-70 N/A
184421 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 21.955 in557.66 mm N/A 0.006 in0.15 mm N/A -471
BS471 B-90 N/A
184422 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 21.955 in557.66 mm N/A 0.006 in0.15 mm N/A -471
BS470 B-70 N/A
184423 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 20.955 in532.26 mm N/A 0.006 in0.15 mm N/A -470
BS470 B-90 N/A
184424 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 20.955 in532.26 mm N/A 0.006 in0.15 mm N/A -470
BS469 B-70 N/A
184425 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 19.955 in506.86 mm N/A 0.006 in0.15 mm N/A -469
BS469 B-90 N/A
184426 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 19.955 in506.86 mm N/A 0.006 in0.15 mm N/A -469
BS468 B-70 N/A
184427 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 19.455 in494.16 mm N/A 0.006 in0.15 mm N/A -468
BS468 B-90 N/A
184428 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 19.455 in494.16 mm N/A 0.006 in0.15 mm N/A -468
BS467 B-70 N/A
184429 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 18.955 in481.46 mm N/A 0.006 in0.15 mm N/A -467
BS467 B-90 N/A
184430 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 18.955 in481.46 mm N/A 0.006 in0.15 mm N/A -467
BS466 B-70 N/A
184431 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 18.455 in468.76 mm N/A 0.006 in0.15 mm N/A -466
BS466 B-90 N/A
184432 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 18.455 in468.76 mm N/A 0.006 in0.15 mm N/A -466
BS465 B-70 N/A
184433 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 17.955 in456.06 mm N/A 0.006 in0.15 mm N/A -465
BS465 B-90 N/A
184434 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 17.955 in456.06 mm N/A 0.006 in0.15 mm N/A -465
BS464 B-70 N/A
184435 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 17.455 in443.36 mm N/A 0.006 in0.15 mm N/A -464
BS464 B-90 N/A
184436 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 17.455 in443.36 mm N/A 0.006 in0.15 mm N/A -464
BS463 B-70 N/A
184437 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 16.9551 in430.66 mm N/A 0.006 in0.15 mm N/A -463
BS463 B-90 N/A
184438 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 16.9551 in430.66 mm N/A 0.006 in0.15 mm N/A -463
BS462 B-70 N/A
184439 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 16.455 in417.96 mm N/A 0.006 in0.15 mm N/A -462
BS462 B-90 N/A
184440 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 16.455 in417.96 mm N/A 0.006 in0.15 mm N/A -462
BS461 B-70 N/A
184441 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 15.9551 in405.26 mm N/A 0.006 in0.15 mm N/A -461
BS461 B-90 N/A
184442 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 15.9551 in405.26 mm N/A 0.006 in0.15 mm N/A -461
Unit of Measure
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