4-1/4" ID X 4-7/8" OD X 5/16" HT

Part number L31204250 is a Polyurethane (AU/EU) Standard Profile Loaded Lip Seal built to a 4-1/4 inch inside diameter, a 4-7/8 inch outside diameter, and a height of 5/16 inch. A loaded lip seal combines a preloaded lip with pressure activation for consistent dynamic sealing. Source specification: Loaded Lip Seal (standard) Urethane.

The material holds up against extrusion under high pressure, petroleum oils, and abrasion and wear. That behavior comes from the compound itself: Polyurethane (AU/EU) is specified for toughness that outperforms conventional rubber compounds and long wear life in dynamic reciprocating service. It is not the right choice where hot water and steam or acids and bases are present.

You will find this material specified across high-pressure fluid power, press and forming equipment, and mining and heavy equipment.

This item is sold individually under part number L31204250. Application requirements vary, so validate compatibility with your process conditions prior to installation.