Engineered for superior sealing performance, this Buna-N industrial O-ring offers exceptional resistance to oils, fuels, and hydraulic fluids. Its robust carbon steel construction ensures durability in high-pressure and temperature applications.
| Standard | ASTM A106 |
| Material | Carbon Steel |
| Finish | Black Oxide |
| Grade | N/A |
| Inside Diameter | 4.028" |
| Outside Diameter | 7.415" |
| Cross Section | 0.255" |
Built to exacting engineering tolerances, this Buna-N O-ring boasts an Inside Diameter of 4.028 inches, an Outside Diameter of 7.415 inches, and a precise 0.255-inch cross-section. The Buna-N (Nitrile Butadiene Rubber) material provides excellent resilience and a broad operating temperature range, coupled with superior resistance to petroleum-based oils, fuels, greases, and hydraulic fluids. The carbon steel construction, while not the sealing material itself, indicates the intended application environment or housing where such an O-ring would be utilized, suggesting robust mechanical support and compatibility with steel mating components. This combination makes it ideal for static and dynamic sealing applications in hydraulic systems, pneumatic assemblies, and automotive components where fluid compatibility and dimensional integrity are paramount.
This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.
1. Ensure sealing surfaces are clean and free of debris. 2. Lightly lubricate the O-ring with a compatible lubricant. 3. Carefully install the O-ring into its designated groove, avoiding stretching or twisting.
| Standard System | Designation |
|---|---|
| ISO Equivalent | ISO 9001:2015 Mfg |
| DIN Equivalent | Industry Standard |
| Primary Standard | ASTM A106 |
| Tensile Strength | Standard Commercial Spec |
| Yield Strength | Standard Commercial Spec |
| Hardness | Varies by specific batch |
| Carbon (C) | 0.28 - 0.55% |
| Manganese (Mn) | 0.60 - 0.90% |
| Phosphorus (P) | 0.04% max |
| Sulfur (S) | 0.05% max |
| Size / Type | Est. Weight (lbs/100) | Shipping Weight (kg) |
|---|---|---|
| Standard | Varies by dimension | Contact Sales |
| Environment | Rating |
|---|---|
| Indoor / Dry | Excellent |
| Outdoor / Exposed | Moderate |
| Marine / Saltwater | Not Recommended |
| Chemical / Acidic | Not Recommended |
| ❌ Mistake | ✅ Correct Approach |
|---|---|
| Using the wrong lubricant which degrades Buna-N. | Always consult a chemical compatibility chart to select a lubricant that is compatible with Buna-N and the operational fluids. |
| Over-stretching the O-ring during installation. | Install the O-ring carefully, allowing it to seat naturally in the groove without excessive force or stretching. |
A: This Industrial O-Ring, Buna-N is manufactured from Carbon Steel.
A: Hydraulic Cylinder Seals, Pneumatic Actuator Seals, Fuel System Components.
Conversion factor: 1 ft-lb ≈ 1.356 Nm
| Status | Mating Component | Standard | Torque Spec | Engineering Notes |
|---|---|---|---|---|
| No verified compatibility data found for this component. | ||||