Buna-N O-Ring, NW50 Size ISO-KF Vacuum Flange, 2-330 O-Ring Size

The 100313906 Buna-N O-Ring is designed for use with size NW50 ISO-KF centering ring assemblies. This 2-330 size O-ring is made of black Buna-N compound N674-70 and is rated for up to 80 deg. C bakeout temperature. This Series 31 accessory offers seals easier and is less expensive than similar Viton O-rings and can be used as a spare or replacement O-ring.