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.
Cross Section Width (in)
Cross Section Width (mm)
Durometer
Inside Diameter (in)
Inside Diameter (mm)
Item # |
IntegrationID |
Type |
Material |
Cross Section Width |
Durometer |
Inside Diameter |
CSW Tolerance |
BS Number |
---|---|---|---|---|---|---|---|---|
BS107 B-70 |
IntegrationID
N/A 184993 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 0.206 in5.23 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -107 |
BS107 B-90 |
IntegrationID
N/A 184994 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 0.206 in5.23 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -107 |
BS106 B-70 |
IntegrationID
N/A 184995 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 0.175 in4.45 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -106 |
BS106 B-90 |
IntegrationID
N/A 184996 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 0.175 in4.45 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -106 |
BS105 B-70 |
IntegrationID
N/A 184997 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 0.143 in3.63 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -105 |
BS105 B-90 |
IntegrationID
N/A 184998 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 0.143 in3.63 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -105 |
BS104 B-70 |
IntegrationID
N/A 184999 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 0.112 in2.84 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -104 |
BS104 B-90 |
IntegrationID
N/A 185000 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 0.112 in2.84 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -104 |
BS103 B-70 |
IntegrationID
N/A 185001 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 0.081 in2.06 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -103 |
BS103 B-90 |
IntegrationID
N/A 185002 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 0.081 in2.06 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -103 |
BS102 B-70 |
IntegrationID
N/A 185003 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 70 | Inside Diameter N/A 0.049 in1.24 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -102 |
BS102 B-90 |
IntegrationID
N/A 185004 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.103 in2.62 mm | Durometer N/A 90 | Inside Diameter N/A 0.049 in1.24 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -102 |
BS50 B-70 |
IntegrationID
N/A 185005 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 5.239 in133.07 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -050 |
BS50 B-90 |
IntegrationID
N/A 185006 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 90 | Inside Diameter N/A 5.239 in133.07 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -050 |
BS49 B-70 |
IntegrationID
N/A 185007 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 4.989 in126.72 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -049 |
BS49 B-90 |
IntegrationID
N/A 185008 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 90 | Inside Diameter N/A 4.989 in126.72 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -049 |
BS48 B-70 |
IntegrationID
N/A 185009 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 4.739 in120.37 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -048 |
BS48 B-90 |
IntegrationID
N/A 185010 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 90 | Inside Diameter N/A 4.739 in120.37 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -048 |
BS47 B-70 |
IntegrationID
N/A 185011 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 4.489 in114.02 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -047 |
BS47 B-90 |
IntegrationID
N/A 185012 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 90 | Inside Diameter N/A 4.489 in114.02 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -047 |
BS46 B-70 |
IntegrationID
N/A 185013 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 4.239 in107.67 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -046 |
BS46 B-90 |
IntegrationID
N/A 185014 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 90 | Inside Diameter N/A 4.239 in107.67 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -046 |
BS45 B-70 |
IntegrationID
N/A 185015 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 3.989 in101.32 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -045 |
BS45 B-90 |
IntegrationID
N/A 185016 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 90 | Inside Diameter N/A 3.989 in101.32 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -045 |
BS44 B-70 |
IntegrationID
N/A 185017 |
Type N/A BS Standard O-Ring | Material N/A Buna | Cross Section Width N/A 0.070 in1.78 mm | Durometer N/A 70 | Inside Diameter N/A 3.739 in94.97 mm | CSW Tolerance N/A 0.003 in0.08 mm | BS Number N/A -044 |