O-ring, Buna – Part # 486539798 – vacstellar

Description

An O-ring might seem like a simple rubber ring, but it plays a very important role in your vacuum pump. The VacStellar O-ring, Buna (Part # 486539798) is a replacement part. It is made to fit perfectly and work reliably.

This O-ring is made from Buna rubber. It is also known as Nitrile or Buna-N. It is one of the most trusted and popular materials for vacuum pump seals. It measures 114 mm across and is 5 mm thick, making it a direct fit for the Busch COBRA NC0630B vacuum pump.