Parker 2‑001 2‑002 2‑003 2‑004 2‑005 AS568 Tiny O‑Ring Kit NBR FKM EPDM VMQ Elastomer For Mini Pneumatic Static Dynamic Sealing Wide Temp Resistance

The AS568A series ensures dimensional compliance, making it fully interchangeable with standard aerospace and industrial O-ring grooves. This standardization facilitates seamless integration in various applications without the need for custom adaptations.

There are four elastomer options available to suit different operational environments. NBR is ideal for general-purpose oil resistance, while FKM excels in high-temperature conditions and exposure to aggressive chemicals. EPDM is suitable for applications involving steam, water, brake fluid, and weather resistance. Additionally, VMQ offers a wide temperature range and physiological inertness, making it versatile for specialized uses.

The O-rings feature a miniature cross-section with a cord diameter of 1.78 mm (± 0.08 mm). This small size allows for effective sealing in extremely tight radial and axial spaces, where larger seals would not fit or perform adequately.

The inside diameter range spans from 0.74 mm (size 2-001) up to 75.92 mm (size 2-050), covering the entire small-size spectrum of the AS568 2-series. This breadth of sizing options ensures that there is a suitable seal for a wide array of compact applications.

Common durometer options typically include 70 Shore A, 75 Shore A, and 90 Shore A, with availability depending on the specific compound and size of the O-ring. This variety allows for customization of hardness to meet different mechanical and sealing requirements.

High-quality molding processes are employed, featuring Parker CBI (Controlled Batch Identification) for traceability. Where applicable, the manufacturing meets MIL-STD-413C visual acceptance standards, ensuring consistent quality and reliability.

The materials used provide broad chemical compatibility, with each elastomer type offering a distinct resistance profile. Detailed selection guidance is available in the specification table to help choose the most appropriate material for the intended application.

Precision instruments and sensors often require components such as small ports, transducer housings, and enclosures for analytical devices. These elements are designed to ensure accurate performance and reliable protection in sensitive equipment.

In the realm of miniature pneumatic and hydraulic systems, compact cylinders, small-bore actuators, valve bodies, and fitting seals play a crucial role. These components contribute to the efficient operation of small-scale fluid power systems.

The automotive and transportation industries utilize various parts including fuel system components, small fluid connectors, sensor seals, and brake system sub-assemblies. Notably, EPDM materials are employed for applications involving glycol-based fluids, providing durability and chemical resistance.

Medical and life-science devices benefit from VMQ grades that comply with FDA and USP Class VI standards. These grades are ideal for fluid-path seals within diagnostic instruments and laboratory equipment, ensuring safety and reliability.

In food and beverage processing, EPDM and VMQ compounds are available with certifications suitable for potable water and food-contact zones. These compliance grades guarantee that materials meet stringent health and safety requirements.

For semiconductor and high-purity systems, specialized FKM and meticulously cleaned VMQ options are used. These materials are designed to withstand chemically aggressive environments and high temperatures in compact settings.

General industrial sealing needs are addressed with components such as gearboxes, pumps, small flanges, and end-caps. These parts are especially useful where space constraints exist and AS568 standardization is essential.

Rotary seal auxiliary elements often include small 2-series O-rings, which serve as energizers or auxiliary sealing components in certain PTFE rotary seal assemblies. Their precise sizing and function enhance the overall sealing performance.