Parker O-Rings
Complete Parker 2-series cross-reference database with AS568 equivalents, dimensional specifications, and material availability. Most comprehensive Parker database available.
- ✓Parker 2-series to AS568 conversion
- ✓NBR, FKM, EPDM, Silicone materials
- ✓Exact dimensional matches
National Oil Seal
National Oil Seal part numbers with exact AS568 equivalents and alternative material options. Comprehensive cross-reference for automotive and industrial applications.
- ✓N0304, N70xx, N75xx series
- ✓Automotive grade materials
- ✓OEM replacement parts
SKF Seals
SKF bearing and seal O-rings with precise dimensional tolerances for rotating equipment, pumps, and mechanical systems. High-quality cross-reference data.
- ✓HMS, CR, CRWA series
- ✓Bearing grade tolerances
- ✓Rotating equipment applications
Popular Cross-Reference Examples
Most commonly requested cross-reference conversions for Parker, National, and SKF O-rings. These examples demonstrate exact AS568 equivalents with dimensional verification and material compatibility information.
Parker 2-214 → AS568-214
Most popular Parker O-ring with exact AS568-214 equivalent. Widely used in hydraulic systems, automotive applications, and general industrial sealing.
Parker 2-110 → AS568-110
Compact Parker O-ring perfect for pneumatic systems, light hydraulics, and automotive fuel systems. High demand for NBR and FKM materials.
Parker 2-325 → AS568-325
Heavy-duty Parker O-ring for high-pressure hydraulics, aerospace systems, and industrial machinery. Available in premium FKM and HNBR materials.
Quick Cross Reference Chart
Most frequently requested cross-reference conversions with exact dimensional specifications and material availability. All references verified against AS568 aerospace standard for accuracy and interchangeability.
| AS568 Size | Parker 2-Series | Inside Diameter | Cross Section | Outside Diameter | Available Materials | Status |
|---|---|---|---|---|---|---|
| AS568-214 | Parker 2-214 | 2.234" (56.74mm) | 0.139" (3.53mm) | 2.512" (63.80mm) | NBR, FKM, EPDM, Silicone | ✓ In Stock |
| AS568-110 | Parker 2-110 | 0.362" (9.19mm) | 0.103" (2.62mm) | 0.568" (14.43mm) | NBR, FKM, EPDM, Silicone | ✓ In Stock |
| AS568-325 | Parker 2-325 | 2.734" (69.44mm) | 0.210" (5.33mm) | 3.154" (80.11mm) | NBR, FKM, EPDM, HNBR | ✓ In Stock |
| AS568-112 | Parker 2-112 | 0.487" (12.37mm) | 0.103" (2.62mm) | 0.693" (17.60mm) | NBR, FKM, EPDM | ✓ In Stock |
| AS568-210 | Parker 2-210 | 0.739" (18.77mm) | 0.139" (3.53mm) | 1.017" (25.83mm) | NBR, FKM, EPDM, Silicone | ✓ In Stock |
Material Cross Reference Guide
Cross-reference O-ring materials across major manufacturers including Parker, DuPont/Chemours, 3M, and Solvay. Ensure compatibility when substituting materials for different applications and operating conditions.
| Generic Material | Parker Compound | DuPont/Chemours | 3M Brand | Solvay Brand | Temperature Range | Applications |
|---|---|---|---|---|---|---|
| Nitrile (NBR) | N674-70, N304-75 | Buna-N | - | - | -40°F to +248°F | Hydraulic, automotive, general |
| FKM (Viton) | V747-75, V884-90 | Viton A, GLT, GBL | Dyneon FE | Tecnoflon | -4°F to +428°F | Chemical, aerospace, high-temp |
| EPDM | E515-80, E692-75 | Nordel IP | - | Keltan | -67°F to +302°F | Water, steam, brake fluid |
| Silicone (VMQ) | S604-70, S383-80 | Silastic | - | - | -67°F to +482°F | Food grade, medical, extreme temp |
| FFKM (Kalrez) | K990-75 | Kalrez 4079, 6375 | Dyneon FFKM | Tecnoflon FFKM | -15°F to +608°F | Semiconductor, pharmaceutical |
Cross Reference Best Practices
Professional guidelines for accurate O-ring cross-referencing to ensure proper fit, function, and performance in your specific application. Follow these engineering best practices for reliable sealing solutions.
✓ Dimensional Verification
Always verify inner diameter (ID), outer diameter (OD), and cross-section (CS) measurements match AS568 standard specifications. Tolerances can vary between manufacturers, affecting sealing performance and groove fit.
✓ Groove Compatibility
Ensure groove dimensions accommodate the cross-referenced O-ring size. Static and dynamic sealing applications require different groove specifications per AS568D standard recommendations.
✓ Material Compatibility
Verify the substitute material meets temperature range, chemical resistance, and durability requirements. Consider pressure ratings, FDA compliance, and specific industry certifications as needed.
✓ Quality Standards
Use only AS568D compliant O-rings from certified manufacturers. Verify dimensional tolerances, material certifications, and quality control documentation for critical applications.
Expert Cross-Reference Assistance
Our technical team provides free cross-reference assistance to help you find the exact O-ring equivalent for your application. Professional engineering support for complex conversions and material selection.
Free technical consultation • Cross-reference verification • Material selection guidance • Same-day response