Products search Shop By Category Call 866-674-6225AdaptersCF Flanges and FittingsHigh Vacuum Bellows SS HosesValvesWeld TubesISO Flanges and FittingsKF (QF) Flanges and FittingsAlcatel Vacuum Pump PartsLeybold Vacuum Pump PartsPfeiffer Vacuum Pump PartsWelch Vacuum Pump PartsGreases – SuppliesVacuum Rated HosesUniversities OnlyPressure Measurement VacuumCustom Vacuum Components / Vented ScrewsGS Series Ball ValvesSuper Sale Items316 Stainless Steel ComponentsBriskHeat®ISO 63, SS Center Ring, Viton, Alum Retainer$33.50Product Code: MKISO63CRR Category: ISO,LF Flanges and FittingsCentering Ring SS, Viton O-ring, Alum RetainerAvailability: In stock ISO 63, SS Center Ring, Viton, Alum Retainer quantity Add to cart Free Shipping on Orders Over $100**Exclusions apply. See Shipping & Return Policy for details.A(inch)B(inch) 3.702.63 Related products ISO 320, SS Center Ring, Viton, Alum Retainer $385.00 ADAPTER, 1/2″ MALE NPT, KF (QF) 40, 304 SS $66.99 Sale! ADAPTER, 3/4″ MALE NPT, KF (QF) 25, 304 SS $67.50 $56.00 ADAPTER, 1/4″ MALE NPT, KF (QF) 40, 304 SS $53.03