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.
Item # |
IntegrationID |
Type |
Material |
Cross Section Width |
Durometer |
Inside Diameter |
CSW Tolerance |
BS Number |
---|---|---|---|---|---|---|---|---|
BS217 B-90 |
IntegrationID
N/A 184818 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 1.171 in29.74 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -217 |
BS216 B-70 |
IntegrationID
N/A 184819 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 1.109 in28.17 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -216 |
BS216 B-90 |
IntegrationID
N/A 184820 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 1.109 in28.17 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -216 |
BS215 B-70 |
IntegrationID
N/A 184821 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 1.046 in26.57 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -215 |
BS215 B-90 |
IntegrationID
N/A 184822 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 1.046 in26.57 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -215 |
BS214 B-70 |
IntegrationID
N/A 184823 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.984 in24.99 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -214 |
BS214 B-90 |
IntegrationID
N/A 184824 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.984 in24.99 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -214 |
BS213 B-70 |
IntegrationID
N/A 184825 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.921 in23.39 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -213 |
BS213 B-90 |
IntegrationID
N/A 184826 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.921 in23.39 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -213 |
BS212 B-70 |
IntegrationID
N/A 184827 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.859 in21.82 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -212 |
BS212 B-90 |
IntegrationID
N/A 184828 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.859 in21.82 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -212 |
BS211 B-70 |
IntegrationID
N/A 184829 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.796 in20.22 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -211 |
BS211 B-90 |
IntegrationID
N/A 184830 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.796 in20.22 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -211 |
BS210 B-70 |
IntegrationID
N/A 184831 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.734 in18.64 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -210 |
BS210 B-90 |
IntegrationID
N/A 184832 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.734 in18.64 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -210 |
BS209 B-70 |
IntegrationID
N/A 184833 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.672 in17.07 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -209 |
BS209 B-90 |
IntegrationID
N/A 184834 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.672 in17.07 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -209 |
BS208 B-70 |
IntegrationID
N/A 184835 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.609 in15.47 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -208 |
BS208 B-90 |
IntegrationID
N/A 184836 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.609 in15.47 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -208 |
BS207 B-70 |
IntegrationID
N/A 184837 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.549 in13.94 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -207 |
BS207 B-90 |
IntegrationID
N/A 184838 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.549 in13.94 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -207 |
BS206 B-70 |
IntegrationID
N/A 184839 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.484 in12.29 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -206 |
BS206 B-90 |
IntegrationID
N/A 184840 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.484 in12.29 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -206 |
BS205 B-70 |
IntegrationID
N/A 184841 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 70 | Inside Diameter N/A 0.421 in10.69 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -205 |
BS205 B-90 |
IntegrationID
N/A 184842 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.139 in3.53 mm | Durometer N/A 90 | Inside Diameter N/A 0.421 in10.69 mm | CSW Tolerance N/A 0.004 in0.10 mm | BS Number N/A -205 |
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