U Finger Spring At Moontown Ltd

***TYPE M30 AND M31:*** The Axial Face Seals - Type M30 and M31 employ a heavy duty, high load spring, recommended for extreme sealing conditions, static and dynamic. These are perfect for marine loading arm swivels and similar applications where high torque and clamping forces are available. Recommended for cryogenic applications, Ultra High Vacuum and other thin gases.