PATIKIL FKM-O-Ring-6mm Fluorine Rubber O-Ring, 6 mm OD, 3 mm ID, 20-Pack

When a seal needs replacing, the right fit matters as much as the material. This PATIKIL fluorine rubber O-ring has a 6 mm outer diameter, 3 mm inner diameter and 1.5 mm wire diameter for repairs that call for this compact metric size.

Its FKM material is described as resistant to oil, acids, alkalis, wear and ageing. That makes the ring suited to sealing tasks in a range of plumbing and mechanical settings.

The pack contains 20 green O-rings, giving repair and maintenance work a supply of matching seals for equipment that uses these dimensions.

At a glance

Each ring is made from fluorine rubber, also known as FKM, and measures 6 mm across the outside, 3 mm across the inside and 1.5 mm in wire diameter. These measurements help identify whether the ring matches the equipment’s sealing groove and connection. Confirm the required size for the application before fitting, choosing by appearance alone can lead to a poor fit.

The stated operating temperature range is -4℉ (-20℃) to 464℉ (240℃), with a maximum pressure of 25 MPA / 3625 psi. FKM’s listed resistance to oil, acids, alkalis, wear and ageing supports use in environments where these material properties are relevant. The pack includes 20 rings, useful when carrying out several matching replacements or keeping spares available for future maintenance.

Tips for day-to-day use

For a dependable seal, clean dirt and debris from the sealing surface before installation. The O-ring is generally fitted into a rectangular groove on an inner or outer circle, where it provides pressure and fluid sealing. Seat it in the correct groove and check that the selected dimensions suit the equipment, a correctly sized replacement is more useful than choosing a seal based only on a similar-looking part.

The compact metric measurements are especially helpful when matching a small seal in a plumbing connection, valve or piece of machinery. Keep the size details together with maintenance notes so a later replacement can be selected consistently. The green colour also makes the ring easy to distinguish when handling the parts in a repair area.

Best use cases

These rings are intended for sealing needs in plumbing, faucet hoses, pressure valves, engines, flanges, filters, mechanical gas compressors, boilers, household appliances, electronic instruments, and hydraulic or pneumatic maintenance. For example, when servicing a compatible valve, clean its sealing surface, match the groove to the 6 mm OD, 3 mm ID and 1.5 mm wire dimensions, then fit the replacement ring in the designated groove.

This is a focused replacement-seal approach: it suits maintenance jobs where the equipment uses this specific O-ring size, rather than a repair that calls for replacing a larger assembly. The 20-piece quantity is practical for workshops and routine upkeep involving more than one matching seal. Always select the ring according to the equipment’s required dimensions and material.

Final verdict

Choose the PATIKIL FKM O-ring when a plumbing or mechanical repair calls for a green fluorine rubber seal measuring 6 mm OD, 3 mm ID and 1.5 mm in wire diameter. Its defined dimensions, stated resistance properties and 20-piece pack make it a practical supply for matching replacement work across plumbing, valves and machinery.