Good quality thin rubber o-ring flat washer gaskets

Thin flat washer gaskets need to retain their intended shape while being moved into position. Custom size and compound choices allow the ring to fit the mating assembly, but a wrinkle introduced during handling can remain hidden after closure. Keep the component supported and avoid pulling a narrow section unnecessarily.

Identify the required inside opening and thickness before comparing the outside diameter. Similar-looking rings can differ enough in section to change how the joint closes. The washer should occupy the intended supported area without extending into a gap where its edge can be displaced.

Select the material for the contact medium and operating temperature. Position the ring on clean surfaces and inspect the circumference before the mating part covers it. Use the assembly's normal locating and closing method so that the washer is not dragged sideways. During replacement, remove old deposits from the seat and examine the removed part for cuts around the inner edge. Store unused washers flat, separated from fasteners or other objects that could damage the thin section.

Material options

Rubber. Custom formulation and color for the intended contact conditions.

Hardness selection

Rubber: 30–90 Shore A. Use the assembly's normal locating and closing method so that the washer is not dragged sideways.

Custom dimensions

Identify the required inside opening and thickness before comparing the outside diameter.

Fit & assembly

Custom size and compound choices allow the ring to fit the mating assembly, but a wrinkle introduced during handling can remain hidden after closure.

Use & inspection

During replacement, remove old deposits from the seat and examine the removed part for cuts around the inner edge.

Photos illustrate structure or material only. Thin flat washer gaskets need to retain their intended shape while being moved into position. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.