The OmniSeal® 103A Series is a refinement of the original spring energized seal design. The helical wound flat spring offers a moderate to high spring load for static and slow to moderate speed dynamic sealing. It has higher friction than the 400A Series, but better sealing of light liquids and gases. Available to fit all AS-4716, MIL-G-5514, Industrial, Metric, JIS and custom gland sizes.