Groove Design

Technical Data

Static O-Ring Axial (Face Seal) Glands

GlandSqueezeGroove WidthGroove
AS568BCSDepthInches%LiquidsGasesRadius
-004 to
-050		.070±
.003		.050 to
.054		.013 to
.023		19 to
32		.101 to
.107		.084 to
.089		.005 to
.015
-102 to
-178		.103±
.003		.074 to
.080		.020 to
.032		20 to
30		.136 to
.142		.120 to
.125		.005 to
.015
-201 to
-284		.139±
.004		.101 to
.107		.028 to
.042		20 to
30		.177 to
.187		.158 to
.164		.010 to
.025
-309 to
-395		.210±
.005		.152 to
.162		.043 to
.063		21 to
30		.270 to
.290		.239 to
.244		.020 to
.035
-425 to
-475		.275±
.006		.201 to
.211		.058 to
.080		21 to
29		.342 to
.362		.309 to
.314		.020 to
.035

Static O-Ring Radial Glands

GlandSqueezeGroove WidthGroove
AS568BCSDepthInches%DC0 BR1 BR2 BRRadius
-004 to
-050		.070±
.003		.050 to
.052		.015 to
.023		22 to
32		.002 to
.005		.093 to
.098		.138 to
.143		.205 to
.210		.005 to
.015
-102 to
-178		.103±
.003		.081 to
.083		.017 to
.025		17 to
24		.002 to
.005		.140 to
.145		.171 to
.176		.238 to
.243		.005 to
.015
-201 to
-284		.139±
.004		.111 to
.113		.022 to
.032		16 to
23		.003 to
.006		.187 to
.192		.208 to
.213		.275 to
.280		.010 to
.025
-309 to
-395		.210±
.005		.170 to
.173		.032 to
.045		15 to
21		.003 to
.006		.281 to
.286		.311 to
.316		.410 to
.415		.020 to
.035
-425 to
-475		.275±
.006		.226 to
.229		.040 to
.055		15 to
20		.004 to
.007		.375 to
.380		.408 to
.413		.538 to
.543		.020 to
.035

Dynamic O-Ring Reciprocating Glands

GlandSqueezeGroove WidthGroove
AS568BCSDepthInches%DC0 BR1 BR2 BRRadius
-004 to
-050		.070±
.003		.055 to
.057		.010 to
.018		15 to
25		.002 to
.005		.093 to
.098		.138 to
.143		.205 to
.210		.005 to
.015
-102 to
-178		.103±
.003		.088 to
.090		.010 to
.018		10 to
17		.002 to
.005		.140 to
.145		.171 to
.176		.238 to
.243		.005 to
.015
-201 to
-284		.139±
.004		.121 to
.123		.012 to
.022		9 to
16		.003 to
.006		.187 to
.192		.208 to
.213		.275 to
.280		.010 to
.025
-309 to
-395		.210±
.005		.185 to
.188		.017 to
.030		8 to
14		.003 to
.006		.281 to
.286		.311 to
.316		.410 to
.415		.020 to
.035
-425 to
-475		.275±
.006		.237 to
.240		.029 to
.044		11 to
16		.004 to
.007		.375 to
.380		.408 to
.413		.538 to
.543		.020 to
.035

CS Cross Section   DC Diametral Clearance   BR Backup Rings  
Measurements in inches.

View Technical Data On Our O-Rings

Order Requirements

  • Business-to-business sales only.
  • $30 per line item minimum
  • Standard-sized O-rings are readily available in the following materials: Black Nitrile (Buna-N) 70 or 90, Brown or Black Viton® 75, Black EPDM 70, Red Silicone 70, Black Neoprene 70, and White PTFE.
  • Metric-sized O-rings are readily available in the following material’s minimum: Black Nitrile (Buna-N) 70 and Black Viton® 75.
  • Standard-sized Black Aflas® 80 and Blue Fluorosilicone 70 O-rings are available in 0-8 weeks.
  • Teflon® Encapsulated FEP/PFA Viton® and Silicone O-rings are available in 0-8 weeks.
  • Standard-sized O-rings with special compounds/colors/durometers are available in 8 weeks Custom-sized O-rings are available in 8 weeks.
  • Custom molded parts are available in 8 weeks; a drawing or sample is required for a quotation.

Your partner in O-Rings since 1996

O-Rings West has been providing the highest quality O-rings and custom-molded rubber products since 1996. We have thousands of satisfied customers around the world, and a 98% on-time delivery record. Our commitment to customer service is unparalleled, as we provide RoHS/Reach-compliant products with full PPAP reports and JIT shipments available. Not only that, but we can create virtually any O-ring or molded rubber product to your exact specifications with OEM pricing and quantity discounts available for larger orders. We also offer free samples upon request, so you can make sure you’re getting exactly what you need before buying it. No matter what type of O-ring or custom molded part you require, O-Rings West is the perfect partner for all your needs.

In addition to offering a wide range of standard sizes in materials such as Nitrile (Buna-N), Viton®, EPDM, Silicone, Neoprene, and PTFE, O Rings West also offers special compounds/colors/durometers which are available in 8 weeks. If you need something even more customized – like Parco Mil-Spec O-rings – they can do that too! And if you’re looking for a custom-molded part then they have low tooling costs with quick turnarounds on quotes usually within the same day. With our commitment to excellence and customer service, it’s no wonder why people keep coming back time after time for all their o ring needs!

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Quality Policy

O-Rings West’s goal is to be recognized globally for quality, reliability and expertise in all aspects of our business. Our policy is to provide a management system and a working environment that emphasize predetermined quality objectives through continual enhancement of personnel capabilities and quality awareness. This system is based on continuous, permanent quality-system improvements to prevent defects, reduce waste, meet customer expectations and sustain profit. Our Quality Management System is based on ISO-9001-2015.

It is also our intent to provide the highest quality products to our customers while complying with customers’ contractual requirements, our company policies and procedures, and applicable safety, quality and environmental regulations. This policy applies to all O-Rings West personnel.