• 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 (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
184193 		N/A BS Standard O-Ring N/A Buna N/A 0.064 in1.63 mm N/A 70 N/A 0.301 in7.65 mm N/A 0.003 in0.08 mm N/A -903
N/A
184194 		N/A BS Standard O-Ring N/A Buna N/A 0.064 in1.63 mm N/A 90 N/A 0.301 in7.65 mm N/A 0.003 in0.08 mm N/A -903
N/A
184195 		N/A BS Standard O-Ring N/A Buna N/A 0.064 in1.63 mm N/A 70 N/A 0.239 in6.07 mm N/A 0.003 in0.08 mm N/A -902
N/A
184196 		N/A BS Standard O-Ring N/A Buna N/A 0.064 in1.63 mm N/A 90 N/A 0.239 in6.07 mm N/A 0.003 in0.08 mm N/A -902
N/A
184197 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 7.875 in200.03 mm N/A 0.006 in0.15 mm N/A -886
N/A
184198 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 7.875 in200.03 mm N/A 0.006 in0.15 mm N/A -886
N/A
184199 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 7.625 in193.68 mm N/A 0.006 in0.15 mm N/A -884
N/A
184200 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 7.625 in193.68 mm N/A 0.006 in0.15 mm N/A -884
N/A
184201 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 7.375 in187.33 mm N/A 0.006 in0.15 mm N/A -882
N/A
184202 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 7.375 in187.33 mm N/A 0.006 in0.15 mm N/A -882
N/A
184203 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 7.125 in180.98 mm N/A 0.006 in0.15 mm N/A -880
N/A
184204 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 7.125 in180.98 mm N/A 0.006 in0.15 mm N/A -880
N/A
184205 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 6.875 in174.63 mm N/A 0.006 in0.15 mm N/A -878
N/A
184206 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 6.875 in174.63 mm N/A 0.006 in0.15 mm N/A -878
N/A
184207 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 6.625 in168.28 mm N/A 0.006 in0.15 mm N/A -876
N/A
184208 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 6.625 in168.28 mm N/A 0.006 in0.15 mm N/A -876
N/A
184209 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 6.375 in161.93 mm N/A 0.006 in0.15 mm N/A -874
N/A
184210 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 6.375 in161.93 mm N/A 0.006 in0.15 mm N/A -874
N/A
184211 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 70 N/A 6.125 in155.58 mm N/A 0.006 in0.15 mm N/A -872
N/A
184212 		N/A BS Standard O-Ring N/A Buna N/A 0.275 in6.99 mm N/A 90 N/A 6.125 in155.58 mm N/A 0.006 in0.15 mm N/A -872
N/A
184213 		N/A BS Standard O-Ring N/A Buna N/A 0.210 in5.33 mm N/A 70 N/A 5.875 in149.23 mm N/A 0.005 in0.13 mm N/A -870
N/A
184214 		N/A BS Standard O-Ring N/A Buna N/A 0.210 in5.33 mm N/A 90 N/A 5.875 in149.23 mm N/A 0.005 in0.13 mm N/A -870
N/A
184215 		N/A BS Standard O-Ring N/A Buna N/A 0.210 in5.33 mm N/A 70 N/A 5.75 in146.05 mm N/A 0.005 in0.13 mm N/A -869
N/A
184216 		N/A BS Standard O-Ring N/A Buna N/A 0.210 in5.33 mm N/A 90 N/A 5.75 in146.05 mm N/A 0.005 in0.13 mm N/A -869
N/A
184217 		N/A BS Standard O-Ring N/A Buna N/A 0.210 in5.33 mm N/A 70 N/A 5.625 in142.88 mm N/A 0.005 in0.13 mm N/A -868
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