5/16" ID X 3/4" OD X 7/32" HT

Part number L21800312 is a Polyurethane (AU/EU) Standard Profile Loaded Lip Seal supplied with a 5/16 inch inside diameter, a 3/4 inch outside diameter, and a height of 7/32 inch. A loaded lip seal uses a flexible sealing lip energized by system pressure to hold a tight seal on a moving rod or piston. Supplementary detail from the product record: Loaded Lip Seal (standard) Urethane.

Polyurethane (AU/EU) is specified here for exceptional abrasion resistance and outstanding extrusion resistance at elevated pressure. It resists extrusion under high pressure, abrasion and wear, and ozone. Exposure to hot water and steam or ketones will shorten service life.

You will find this material specified across construction machinery, hydraulic cylinders, and high-pressure fluid power.

This item is sold individually under part number L21800312. Application requirements vary, so validate compatibility with your process conditions prior to installation. APG can cross-reference from an existing part number, a drawing or a physical sample if this size is not an exact match.