Chesterton 89115RUSCS Seal

Chesterton 891-15 RU SC seal (659330, part number 89115RUSCS) is a Rotary Inside Single‑seal design from Chesterton’s 891 family, engineered for rotating equipment where a durable shaft‑sealing solution is required. Identified by the 891 design and RU SC/S suffix, it arrives as an integrated seal assembly intended to replace worn components without disassembly of the entire housing. This model is associated with Chesterton’s standard 891 footprint and is compatible with installations that use the 891‑series seal interface. The 891 family is documented by Chesterton as an upgrade over earlier seal configurations, offering a compact, robust configuration suitable for demanding service. As a specific replacement, it provides the sealing function for rotating shafts in process equipment where leakage control is essential. Because application conditions—such as fluid, temperature, pressure, and gland size—vary, verify compatibility with your equipment’s operating parameters when selecting this seal variant.