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 (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

N/A
184893
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 4.487 in113.97 mm N/A 0.003 in0.08 mm N/A -157
N/A
184894
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 4.487 in113.97 mm N/A 0.003 in0.08 mm N/A -157
N/A
184895
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 4.237 in107.62 mm N/A 0.003 in0.08 mm N/A -156
N/A
184896
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 4.237 in107.62 mm N/A 0.003 in0.08 mm N/A -156
N/A
184897
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 3.987 in101.27 mm N/A 0.003 in0.08 mm N/A -155
N/A
184898
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 3.987 in101.27 mm N/A 0.003 in0.08 mm N/A -155
N/A
184899
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 3.737 in94.92 mm N/A 0.003 in0.08 mm N/A -154
N/A
184900
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 3.737 in94.92 mm N/A 0.003 in0.08 mm N/A -154
N/A
184901
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 3.487 in88.57 mm N/A 0.003 in0.08 mm N/A -153
N/A
184902
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 3.487 in88.57 mm N/A 0.003 in0.08 mm N/A -153
N/A
184903
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 3.237 in82.22 mm N/A 0.003 in0.08 mm N/A -152
N/A
184904
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 3.237 in82.22 mm N/A 0.003 in0.08 mm N/A -152
N/A
184905
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 2.987 in75.87 mm N/A 0.003 in0.08 mm N/A -151
N/A
184906
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 2.987 in75.87 mm N/A 0.003 in0.08 mm N/A -151
N/A
184907
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 2.862 in72.69 mm N/A 0.003 in0.08 mm N/A -150
N/A
184908
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 2.862 in72.69 mm N/A 0.003 in0.08 mm N/A -150
N/A
184909
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 2.800 in71.12 mm N/A 0.003 in0.08 mm N/A -149
N/A
184910
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 2.800 in71.12 mm N/A 0.003 in0.08 mm N/A -149
N/A
184911
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 2.737 in69.52 mm N/A 0.003 in0.08 mm N/A -148
N/A
184912
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 2.737 in69.52 mm N/A 0.003 in0.08 mm N/A -148
N/A
184913
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 2.675 in67.95 mm N/A 0.003 in0.08 mm N/A -147
N/A
184914
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 2.675 in67.95 mm N/A 0.003 in0.08 mm N/A -147
N/A
184915
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 2.612 in66.34 mm N/A 0.003 in0.08 mm N/A -146
N/A
184916
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 2.612 in66.34 mm N/A 0.003 in0.08 mm N/A -146
N/A
184917
N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 2.550 in64.77 mm N/A 0.003 in0.08 mm N/A -145
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