• 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 (in)

Inside Diameter (mm)

Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

BS Number

N/A
184793 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 2.359 in59.92 mm N/A 0.004 in0.10 mm N/A -229
N/A
184794 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 2.359 in59.92 mm N/A 0.004 in0.10 mm N/A -229
N/A
184795 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 2.234 in56.74 mm N/A 0.004 in0.10 mm N/A -228
N/A
184796 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 2.234 in56.74 mm N/A 0.004 in0.10 mm N/A -228
N/A
184797 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 2.109 in53.57 mm N/A 0.004 in0.10 mm N/A -227
N/A
184798 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 2.109 in53.57 mm N/A 0.004 in0.10 mm N/A -227
N/A
184799 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.984 in50.39 mm N/A 0.004 in0.10 mm N/A -226
N/A
184800 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 1.984 in50.39 mm N/A 0.004 in0.10 mm N/A -226
N/A
184801 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.859 in47.22 mm N/A 0.004 in0.10 mm N/A -225
N/A
184802 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 1.859 in47.22 mm N/A 0.004 in0.10 mm N/A -225
N/A
184803 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.734 in44.04 mm N/A 0.004 in0.10 mm N/A -224
N/A
184804 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 1.734 in44.04 mm N/A 0.004 in0.10 mm N/A -224
N/A
184805 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.609 in40.87 mm N/A 0.004 in0.10 mm N/A -223
N/A
184806 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 1.609 in40.87 mm N/A 0.004 in0.10 mm N/A -223
N/A
184807 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.484 in37.69 mm N/A 0.004 in0.10 mm N/A -222
N/A
184808 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 1.484 in37.69 mm N/A 0.004 in0.10 mm N/A -222
N/A
184809 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.421 in36.09 mm N/A 0.004 in0.10 mm N/A -221
N/A
184810 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 1.421 in36.09 mm N/A 0.004 in0.10 mm N/A -221
N/A
184811 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.359 in34.52 mm N/A 0.004 in0.10 mm N/A -220
N/A
184812 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 1.359 in34.52 mm N/A 0.004 in0.10 mm N/A -220
N/A
184813 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.296 in32.92 mm N/A 0.004 in0.10 mm N/A -219
N/A
184814 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 1.296 in32.92 mm N/A 0.004 in0.10 mm N/A -219
N/A
184815 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.234 in31.34 mm N/A 0.004 in0.10 mm N/A -218
N/A
184816 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 90 N/A 1.234 in31.34 mm N/A 0.004 in0.10 mm N/A -218
N/A
184817 		N/A BS Standard O-Ring N/A Buna N/A 0.139 in3.53 mm N/A 70 N/A 1.171 in29.74 mm N/A 0.004 in0.10 mm N/A -217
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