Enhance Sealing Flexibility with O.S Seals O-Ring Cord
Welcome to O.S Seals, your premier destination for sealing excellence. Our O-Ring Cord collection redefines versatility in sealing solutions, offering precision-crafted cords suitable for a multitude of applications. Explore the unique features that make our O-Ring Cord stand out, providing unmatched flexibility and reliability in your sealing needs.
1. Precision-Crafted O-Ring Cord for Varied Applications
O.S Seals O-Ring Cord is expertly manufactured to cater to diverse sealing requirements. Whether you’re in automotive, industrial, or manufacturing sectors, our O-Ring Cord offers a flexible and dependable solution for creating customized O-rings.
2. High-Quality Materials for Longevity
Choose from our selection of high-quality materials, including Nitrile, Viton, EPDM, or Silicone. Each O-Ring Cord is crafted with precision and durability in mind, ensuring resilience against wear, tear, and exposure to various environmental conditions.
3. Versatile Cord Options for Customization
Tailor your sealing solutions with our range of O-Ring Cord options. Available in various sizes and materials, O.S Seals provides the flexibility needed to create customized O-rings that meet your specific application requirements.
4. Efficient and Cost-Effective Sealing Solution
O.S Seals O-Ring Cord offers an efficient and cost-effective approach to sealing applications. The versatility of the cord allows for on-site customization, reducing the need for an extensive inventory of pre-made O-rings.
5. Expert Assistance for Tailored Solutions
Our experienced team is ready to assist you in selecting the right O-Ring Cord for your unique needs. Contact us for expert guidance, product inquiries, or to discuss customized solutions tailored to your specific application.
6. Immediate Availability in Various Sizes
O.S Seals ensures immediate availability of O-Ring Cord in various sizes, offering convenience and prompt delivery for your sealing projects. Our commitment is to provide solutions that meet your timelines without compromising on quality.
Choose O.S Seals for O-Ring Cord that exceeds expectations in flexibility, durability, and versatility. Browse our product offerings and discover how our precision-engineered cords can elevate the performance of your sealing applications. Trust in O.S Seals for sealing solutions that adapt to your needs with precision and reliability.
Classes of O-Ring Cord Tolerances
- Class I (E1) – High Precision
- Class 2 (E2) – Precision
- Class 3 (E3) – Commercial
Cross-Sectional Tolerances (Inches)
|
Cross Section
|
E1
|
E2
|
E3
|
|
.000 – .059
|
+/- .006
|
+/- .010
|
+/- .015
|
|
.060 – .099
|
+/- .008
|
+/- .014
|
+/- .020
|
|
.100 – .159
|
+/- .010
|
+/- .016
|
+/- .027
|
|
.160 – .249
|
+/- .014
|
+/- .020
|
+/- .031
|
|
.250 – .389
|
+/- .016
|
+/- .027
|
+/- .039
|
|
.390 – .629
|
+/- .020
|
+/- .031
|
+/- .051
|
|
.630 – .979
|
+/- .027
|
+/- .039
|
+/- .063
|
|
.980 – 1.569
|
+/- .031
|
+/- .051
|
+/- .079
|
|
1.570 – 2.479
|
+/- .039
|
+/- .063
|
+/- .098
|
|
≥ 2.480
|
+/- .051
|
+/- .079
|
+/- .126
|
Cross-Sectional Tolerances (Metric)
|
Cross Section
|
E1
|
E2
|
E3
|
|
0.00 – 1.49
|
+/- .150
|
+/- .250
|
+/- .400
|
|
1.50 – 2.49
|
+/- .200
|
+/- .350
|
+/- .500
|
|
2.50 – 3.99
|
+/- .250
|
+/- .400
|
+/- .700
|
|
4.00 – 6.29
|
+/- .350
|
+/- .500
|
+/- .800
|
|
6.30 – 9.99
|
+/- .400
|
+/- .700
|
+/- 1.00
|
|
10.00 – 15.99
|
+/- .500
|
+/- .800
|
+/- 1.30
|
|
16.00 – 24.99
|
+/- .700
|
+/- 1.00
|
+/- 1.60
|
|
25.00 – 39.99
|
+/- .800
|
+/- 1.30
|
+/- 2.00
|
|
40.00 – 62.99
|
+/- 1.00
|
+/- 1.60
|
+/- 2.50
|
|
≥ 63.00
|
+/- 1.30
|
+/- 2.00
|
+/- 3.20
|
Standard Cord Cross Sections and Tolerances
The table below shows all of the common sizes of cord stock that we carry in various materials and durometers. We have listed the tolerances for each size, according to the ARPM Class E2 tolerances from the above chart. Additionally, the table shows the potential smallest and largest cross-sectional dimensions according to these tolerances for that particular size. If your application requires tighter tolerances than these, please be sure to inquire with us before placing an order so we can find an appropriate solution to meet your needs.
| Inch | MM | Common Name | Tolerance | Low | High |
|---|---|---|---|---|---|
| 0.039 | 1 | 1 MM | +/- .010 | 0.029 | 0.049 |
| 0.063 | 1.6 | 1/16” Actual | +/- .014 | 0.049 | 0.077 |
| 0.07 | 1.8 | 1/16” Nominal | +/- .014 | 0.056 | 0.084 |
| 0.079 | 2 | 2 MM | +/- .014 | 0.065 | 0.093 |
| 0.093 | 2.4 | 3/32” Actual | +/- .014 | 0.079 | 0.107 |
| 0.103 | 2.6 | 3/32” Nominal | +/- .016 | 0.087 | 0.119 |
| 0.118 | 3 | 3 MM | +/- .016 | 0.102 | 0.134 |
| 0.125 | 3.2 | 1/8” Actual | +/- .016 | 0.109 | 0.141 |
| 0.139 | 3.5 | 1/8” Nominal | +/- .016 | 0.123 | 0.155 |
| 0.157 | 4 | 4 MM | +/- .016 | 0.141 | 0.173 |
| 0.177 | 4.5 | 4.5 MM | +/- .020 | 0.157 | 0.197 |
| 0.188 | 4.8 | 3/16” Actual | +/- .020 | 0.168 | 0.208 |
| 0.196 | 5 | 5 MM | +/- .020 | 0.176 | 0.216 |
| 0.21 | 5.3 | 3/16” Nominal | +/- .020 | 0.19 | 0.23 |
| 0.218 | 5.5 | 7/32” | +/- .020 | 0.198 | 0.238 |
| 0.224 | 5.7 | 5.7 MM | +/- .020 | 0.204 | 0.244 |
| 0.236 | 6 | 6 MM | +/- .020 | 0.216 | 0.256 |
| 0.25 | 6.4 | 1/4” Actual | +/- .027 | 0.223 | 0.277 |
| 0.275 | 7 | 1/4” Nominal, 7MM | +/- .027 | 0.248 | 0.302 |
| 0.295 | 7.5 | 7.5 MM | +/- .027 | 0.268 | 0.322 |
| 0.313 | 8 | 5/16” | +/- .027 | 0.286 | 0.34 |
| 0.33 | 8.4 | 8.4 MM | +/- .027 | 0.303 | 0.357 |
| 0.354 | 9 | 9 MM | +/- .027 | 0.327 | 0.381 |
| 0.375 | 9.5 | 3/8” | +/- .027 | 0.348 | 0.402 |
| 0.393 | 10 | 10 MM | +/- .031 | 0.362 | 0.424 |
| 0.437 | 11.1 | 7/16” | +/- .031 | 0.406 | 0.468 |
| 0.472 | 12 | 12 MM | +/- .031 | 0.441 | 0.503 |
| 0.5 | 12.7 | 1/2” | +/- .031 | 0.469 | 0.531 |
