*568-139 FLUOROSILICONE 70 DURO ORING

Use item FS70139 when a Fluorosilicone 70A O-Ring is required for industrial fluid sealing, equipment repair, pumps, valves, cylinders and general maintenance applications. The item is specified by AS568-139; 2.175 inch (55.25 mm) ID x 0.103 inch (2.62 mm) CS; 2.381 inch (60.48 mm) OD, with 2 3/16 inch nominal ID; 3/32 inch nominal CS for cross-reference against common gland and replacement dimensions. The Fluorosilicone construction supports fuel and oil resistance paired with low-temperature flexibility for specialty sealing service. It is with a listed temperature range of -80°F (-62.2°C) to 350°F (177°C), which can help narrow material selection for heat, cold or process exposure. The blue color and round profile provide a practical visual identifier during receiving, stocking and installation. This standard industrial O-ring can be used across compatible static and dynamic sealing applications in pumps, valves, cylinders and assemblies. The each-unit format supports precise replacement, kitting, resale and job-specific purchasing. Important product identifiers include O-rings, replacement seals, fluid sealing, material compatibility and dimensional fit. It supports customer comparison, distributor cataloging and specification-based selection without relying on pricing, availability or shipping claims.