BS Aflas O-Rings | OneMonroe

OneMonroe Aflas® O-Rings offer exceptional durability and resistance, engineered for high-performance applications where standard elastomers fall short. Made from Aflas® material, these O-rings are specifically designed to withstand challenging environments with extreme temperatures, chemicals, and aggressive fluids. Their outstanding resilience against oil, steam, acids, and alkalis makes them ideal for industries such as chemical processing, oil and gas, and automotive manufacturing, where exposure to such conditions is common. OneMonroe Aflas® O-Rings provide a reliable sealing solution that maintains its integrity and performance even in the most demanding applications.

The versatility of Aflas® material allows OneMonroe O-Rings to perform exceptionally in both high- and low-temperature ranges, ranging from -10°C to 200°C (14°F to 392°F). This unique thermal resistance ensures that these O-rings can be used effectively across a wide spectrum of applications, minimizing the need for frequent replacements and maintenance. In addition to temperature resilience, Aflas® O-Rings resist a variety of chemicals and fluids, including amines, bases, acids, and hydrocarbons. Their durability and adaptability make them a cost-effective choice for industries that demand long-lasting, reliable sealing solutions under extreme conditions.

OneMonroe’s commitment to quality ensures that each Aflas® O-Ring is manufactured with precision to meet rigorous industry standards. Available in a range of sizes and thicknesses, these O-rings offer flexibility in design while maintaining consistent, dependable sealing performance. With OneMonroe Aflas® O-Rings, you can be assured of high-quality components that deliver long-term reliability, reduce downtime, and support seamless operations across industries. Trust in OneMonroe to provide O-rings that uphold the highest standards in durability, chemical resistance, and thermal stability for all your specialized sealing needs.

For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart.

Item #	IntegrationID	Type	Material	Cross Section Width	Durometer	Inside Diameter	CSW Tolerance	BS Number
BS319 AFLAS-83	N/A 187208	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 1.04 in26.34 mm	N/A 0.005 in0.13 mm	N/A -319
BS318 AFLAS-83	N/A 187209	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.98 in24.77 mm	N/A 0.005 in0.13 mm	N/A -318
BS317 AFLAS-83	N/A 187210	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.91 in23.16 mm	N/A 0.005 in0.13 mm	N/A -317
BS316 AFLAS-83	N/A 187211	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.85 in21.59 mm	N/A 0.005 in0.13 mm	N/A -316
BS315 AFLAS-83	N/A 187212	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.79 in19.99 mm	N/A 0.005 in0.13 mm	N/A -315
BS314 AFLAS-83	N/A 187213	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.73 in18.42 mm	N/A 0.005 in0.13 mm	N/A -314
BS313 AFLAS-83	N/A 187214	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.66 in16.81 mm	N/A 0.005 in0.13 mm	N/A -313
BS312 AFLAS-83	N/A 187215	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.60 in15.24 mm	N/A 0.005 in0.13 mm	N/A -312
BS311 AFLAS-83	N/A 187216	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.54 in13.64 mm	N/A 0.005 in0.13 mm	N/A -311
BS310 AFLAS-83	N/A 187217	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.48 in12.07 mm	N/A 0.005 in0.13 mm	N/A -310
BS309 AFLAS-83	N/A 187218	N/A BS Standard O-Ring	N/A Aflas	N/A 0.210 in5.33 mm	N/A 83	N/A 0.41 in10.46 mm	N/A 0.005 in0.13 mm	N/A -309
BS281 AFLAS-83	N/A 187219	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 14.98 in380.59 mm	N/A 0.004 in0.10 mm	N/A -281
BS280 AFLAS-83	N/A 187220	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 13.98 in355.19 mm	N/A 0.004 in0.10 mm	N/A -280
BS279 AFLAS-83	N/A 187221	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 12.98 in329.79 mm	N/A 0.004 in0.10 mm	N/A -279
BS278 AFLAS-83	N/A 187222	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 11.98 in304.39 mm	N/A 0.004 in0.10 mm	N/A -278
BS277 AFLAS-83	N/A 187223	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 11.48 in291.69 mm	N/A 0.004 in0.10 mm	N/A -277
BS276 AFLAS-83	N/A 187224	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 10.98 in278.99 mm	N/A 0.004 in0.10 mm	N/A -276
BS275 AFLAS-83	N/A 187225	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 10.48 in266.29 mm	N/A 0.004 in0.10 mm	N/A -275
BS274 AFLAS-83	N/A 187226	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 9.98 in253.59 mm	N/A 0.004 in0.10 mm	N/A -274
BS273 AFLAS-83	N/A 187227	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 9.73 in247.24 mm	N/A 0.004 in0.10 mm	N/A -273
BS272 AFLAS-83	N/A 187228	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 9.48 in240.89 mm	N/A 0.004 in0.10 mm	N/A -272
BS271 AFLAS-83	N/A 187229	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 9.23 in234.54 mm	N/A 0.004 in0.10 mm	N/A -271
BS270 AFLAS-83	N/A 187230	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 8.98 in228.19 mm	N/A 0.004 in0.10 mm	N/A -270
BS269 AFLAS-83	N/A 187231	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 8.73 in221.84 mm	N/A 0.004 in0.10 mm	N/A -269
BS268 AFLAS-83	N/A 187232	N/A BS Standard O-Ring	N/A Aflas	N/A 0.139 in3.53 mm	N/A 83	N/A 8.48 in215.49 mm	N/A 0.004 in0.10 mm	N/A -268

N/A
187208

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 1.04 in26.34 mm

N/A 0.005 in0.13 mm

N/A -319

BS318 AFLAS-83

N/A
187209

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.98 in24.77 mm

N/A 0.005 in0.13 mm

N/A -318

BS317 AFLAS-83

N/A
187210

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.91 in23.16 mm

N/A 0.005 in0.13 mm

N/A -317

BS316 AFLAS-83

N/A
187211

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.85 in21.59 mm

N/A 0.005 in0.13 mm

N/A -316

BS315 AFLAS-83

N/A
187212

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.79 in19.99 mm

N/A 0.005 in0.13 mm

N/A -315

BS314 AFLAS-83

N/A
187213

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.73 in18.42 mm

N/A 0.005 in0.13 mm

N/A -314

BS313 AFLAS-83

N/A
187214

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.66 in16.81 mm

N/A 0.005 in0.13 mm

N/A -313

BS312 AFLAS-83

N/A
187215

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.60 in15.24 mm

N/A 0.005 in0.13 mm

N/A -312

BS311 AFLAS-83

N/A
187216

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.54 in13.64 mm

N/A 0.005 in0.13 mm

N/A -311

BS310 AFLAS-83

N/A
187217

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.48 in12.07 mm

N/A 0.005 in0.13 mm

N/A -310

BS309 AFLAS-83

N/A
187218

N/A BS Standard O-Ring

N/A Aflas

N/A 0.210 in5.33 mm

N/A 83

N/A 0.41 in10.46 mm

N/A 0.005 in0.13 mm

N/A -309

BS281 AFLAS-83

N/A
187219

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 14.98 in380.59 mm

N/A 0.004 in0.10 mm

N/A -281

BS280 AFLAS-83

N/A
187220

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 13.98 in355.19 mm

N/A 0.004 in0.10 mm

N/A -280

BS279 AFLAS-83

N/A
187221

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 12.98 in329.79 mm

N/A 0.004 in0.10 mm

N/A -279

BS278 AFLAS-83

N/A
187222

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 11.98 in304.39 mm

N/A 0.004 in0.10 mm

N/A -278

BS277 AFLAS-83

N/A
187223

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 11.48 in291.69 mm

N/A 0.004 in0.10 mm

N/A -277

BS276 AFLAS-83

N/A
187224

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 10.98 in278.99 mm

N/A 0.004 in0.10 mm

N/A -276

BS275 AFLAS-83

N/A
187225

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 10.48 in266.29 mm

N/A 0.004 in0.10 mm

N/A -275

BS274 AFLAS-83

N/A
187226

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 9.98 in253.59 mm

N/A 0.004 in0.10 mm

N/A -274

BS273 AFLAS-83

N/A
187227

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 9.73 in247.24 mm

N/A 0.004 in0.10 mm

N/A -273

BS272 AFLAS-83

N/A
187228

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 9.48 in240.89 mm

N/A 0.004 in0.10 mm

N/A -272

BS271 AFLAS-83

N/A
187229

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 9.23 in234.54 mm

N/A 0.004 in0.10 mm

N/A -271

BS270 AFLAS-83

N/A
187230

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 8.98 in228.19 mm

N/A 0.004 in0.10 mm

N/A -270

BS269 AFLAS-83

N/A
187231

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 8.73 in221.84 mm

N/A 0.004 in0.10 mm

N/A -269

BS268 AFLAS-83

N/A
187232

N/A BS Standard O-Ring

N/A Aflas

N/A 0.139 in3.53 mm

N/A 83

N/A 8.48 in215.49 mm

N/A 0.004 in0.10 mm

N/A -268