Overview
The AS568-432 O-Ring is a precision-engineered sealing component that meets SAE AS568 standard specifications. With a nominal inner diameter of 5-3/8″ and a 1/4″ cross section, this o-ring is designed to prevent fluid leakage and maintain pressure in hydraulic systems, pneumatic equipment, and industrial machinery. The pack of 15 units provides reliable spares for maintenance teams and system integrators.
Key Features
- SAE AS568 Certified: Meets Society of Automotive Engineers standard for dimensional tolerances and performance
- Precision Dimensions: 5-3/8″ ID, 5-7/8″ OD, 1/4″ cross section with tight tolerances
- Bulk Pack: 15 seals per package for cost-effective replacement stock
- Versatile Applications: Suitable for hydraulic, pneumatic, and general industrial sealing
- Ready to Deploy: New condition, open box availability for immediate use
Technical Specifications
| Standard | AS568 / AS568A / AS568B / AS568C / AS568D |
| Dash Size | -432 |
| Inner Diameter (ID) | 5-3/8″ (5.350″ nominal) |
| Outer Diameter (OD) | 5-7/8″ (5.900″ nominal) |
| Cross Section | 1/4″ (0.275″ ± 0.006″) |
| Tolerance | ISO 3601-1A |
| Quantity Per Pack | 15 Seals |
| Condition | New – Open Box |
Typical Applications
- Hydraulic pump and motor sealing
- Pneumatic cylinder rod seals
- Pressure vessel ports and connections
- Industrial equipment maintenance and repair
- Machinery bearing and axle sealing
- Tube fitting boss gaskets
Compatibility & Replacements
Compatible With
- Hydraulic systems operating at SAE AS568 standard pressures
- Pneumatic equipment using 5-3/8″ ID sealing grooves
- Industrial machinery requiring AS568 standard seals
- Fluid power systems (oil, water, air, inert gases)
Replaces / Drop-In Replacement For
- Standard AS568-432 seals from any qualified manufacturer
- Original equipment manufacturer (OEM) replacements for equipment using AS568-432 specifications
Works With
- All sealing systems designed to AS568 dimensional standards
- Hydraulic fluid power components (ISO 4413 compliant systems)
- Pneumatic equipment (ISO 4414 compliant systems)
- Compatible with common elastomer types: Buna-N (NBR), EPDM, Viton® (FKM) when size-matched








