Sealing ring, Fiber, 39 x 33.5 x 1.9 mm, Becker, U Series, Part# 300086 – vacstellar

This Sealing ring, Fiber, 39 x 33.5 x 1.9 mm, Becker, U Series, Part# 300086 is the exact replacement part you need. It is made from a durable fiber material specifically chosen for its ability to create a tight, reliable seal when compressed between metal surfaces . The dimensions are engineered: an outer diameter of 39mm, an inner diameter of 33.5mm, and a thickness of 1.9mm . This specific fiber sealing ring (Part# 300086) is designed for a remarkably wide range of Becker U Series models. The list includes the U4.20, U4.40, U4.70 (all indexes), U4.100 (all indexes), U4.165 (all indexes), U4.190 (all indexes), U4.250 (all indexes), U4.400, and U4.630 pumps . Its presence in an official service kit for different pump models confirms its importance as a standard sealing component across the U Series family .