Monroe
OneMonroe
Locations Throughout the Country
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Tel: (877) 740-2007
Fax: (800) 453-9683
Email: sales@askmonroe.com
Website: monroeengineering.com
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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.

BS O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

CSW Tolerance

BS Number

Quantity
BS132 B-70 N/A
184943 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.737 in44.12 mm N/A 0.003 in0.08 mm N/A -132
BS132 B-90 N/A
184944 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.737 in44.12 mm N/A 0.003 in0.08 mm N/A -132
BS131 B-70 N/A
184945 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.674 in42.52 mm N/A 0.003 in0.08 mm N/A -131
BS131 B-90 N/A
184946 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.674 in42.52 mm N/A 0.003 in0.08 mm N/A -131
BS130 B-70 N/A
184947 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.612 in40.94 mm N/A 0.003 in0.08 mm N/A -130
BS130 B-90 N/A
184948 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.612 in40.94 mm N/A 0.003 in0.08 mm N/A -130
BS129 B-70 N/A
184949 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.549 in39.34 mm N/A 0.003 in0.08 mm N/A -129
BS129 B-90 N/A
184950 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.549 in39.34 mm N/A 0.003 in0.08 mm N/A -129
BS128 B-70 N/A
184951 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.487 in37.77 mm N/A 0.003 in0.08 mm N/A -128
BS128 B-90 N/A
184952 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.487 in37.77 mm N/A 0.003 in0.08 mm N/A -128
BS127 B-70 N/A
184953 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.424 in36.17 mm N/A 0.003 in0.08 mm N/A -127
BS127 B-90 N/A
184954 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.424 in36.17 mm N/A 0.003 in0.08 mm N/A -127
BS126 B-70 N/A
184955 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.362 in34.59 mm N/A 0.003 in0.08 mm N/A -126
BS126 B-90 N/A
184956 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.362 in34.59 mm N/A 0.003 in0.08 mm N/A -126
BS125 B-70 N/A
184957 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.299 in32.99 mm N/A 0.003 in0.08 mm N/A -125
BS125 B-90 N/A
184958 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.299 in32.99 mm N/A 0.003 in0.08 mm N/A -125
BS124 B-70 N/A
184959 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.237 in31.42 mm N/A 0.003 in0.08 mm N/A -124
BS124 B-90 N/A
184960 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.237 in31.42 mm N/A 0.003 in0.08 mm N/A -124
BS123 B-70 N/A
184961 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.174 in29.82 mm N/A 0.003 in0.08 mm N/A -123
BS123 B-90 N/A
184962 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.174 in29.82 mm N/A 0.003 in0.08 mm N/A -123
BS122 B-70 N/A
184963 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.112 in28.24 mm N/A 0.003 in0.08 mm N/A -122
BS122 B-90 N/A
184964 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.112 in28.24 mm N/A 0.003 in0.08 mm N/A -122
BS121 B-70 N/A
184965 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 1.049 in26.64 mm N/A 0.003 in0.08 mm N/A -121
BS121 B-90 N/A
184966 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 90 N/A 1.049 in26.64 mm N/A 0.003 in0.08 mm N/A -121
BS120 B-70 N/A
184967 		N/A BS Standard O-Ring N/A Buna N/A 0.103 in2.62 mm N/A 70 N/A 0.987 in25.07 mm N/A 0.003 in0.08 mm N/A -120
Unit of Measure
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