• BS O-Rings

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.

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Cross Section Width (mm)

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Inside Diameter (mm)

Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

BS Number

N/A
184443 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 15.475 in393.07 mm N/A 0.006 in0.15 mm N/A -460
N/A
184444 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 15.475 in393.07 mm N/A 0.006 in0.15 mm N/A -460
N/A
184445 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 14.9751 in380.37 mm N/A 0.006 in0.15 mm N/A -459
N/A
184446 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 14.9751 in380.37 mm N/A 0.006 in0.15 mm N/A -459
N/A
184447 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 14.475 in367.67 mm N/A 0.006 in0.15 mm N/A -458
N/A
184448 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 14.475 in367.67 mm N/A 0.006 in0.15 mm N/A -458
N/A
184449 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 13.9751 in354.97 mm N/A 0.006 in0.15 mm N/A -457
N/A
184450 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 13.9751 in354.97 mm N/A 0.006 in0.15 mm N/A -457
N/A
184451 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 13.475 in342.27 mm N/A 0.006 in0.15 mm N/A -456
N/A
184452 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 13.475 in342.27 mm N/A 0.006 in0.15 mm N/A -456
N/A
184453 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 12.975 in329.57 mm N/A 0.006 in0.15 mm N/A -455
N/A
184454 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 12.975 in329.57 mm N/A 0.006 in0.15 mm N/A -455
N/A
184455 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 12.475 in316.87 mm N/A 0.006 in0.15 mm N/A -454
N/A
184456 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 12.475 in316.87 mm N/A 0.006 in0.15 mm N/A -454
N/A
184457 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 11.975 in304.17 mm N/A 0.006 in0.15 mm N/A -453
N/A
184458 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 11.975 in304.17 mm N/A 0.006 in0.15 mm N/A -453
N/A
184459 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 11.475 in291.47 mm N/A 0.006 in0.15 mm N/A -452
N/A
184460 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 11.475 in291.47 mm N/A 0.006 in0.15 mm N/A -452
N/A
184461 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 10.975 in278.77 mm N/A 0.006 in0.15 mm N/A -451
N/A
184462 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 10.975 in278.77 mm N/A 0.006 in0.15 mm N/A -451
N/A
184463 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 10.475 in266.07 mm N/A 0.006 in0.15 mm N/A -450
N/A
184464 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 10.475 in266.07 mm N/A 0.006 in0.15 mm N/A -450
N/A
184465 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 9.975 in253.37 mm N/A 0.006 in0.15 mm N/A -449
N/A
184466 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 9.975 in253.37 mm N/A 0.006 in0.15 mm N/A -449
N/A
184467 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 9.475 in240.67 mm N/A 0.006 in0.15 mm N/A -448
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