Choose products to compare anywhere you see 'Add to Compare' or 'Compare' options displayed. Compare All Close Shopping cart items Shopping cart items Keyword search Search Submit search mks Search Submit search Products MKS Capacitance Manometers Compact Pressure Transducers General Purpose Pressure Transducers High Performance Pressure Transducers Industrial Pressure Transducers Reference Pressure Transducers View All Capacitance Manometers Mass Flow Controllers & Meters Mass Flow Controllers Mass Flow Meters In Situ Flow Verifiers Flow Ratio Controllers Mass Flow Controller Accessories Vacuum Gauges Vacuum Pressure Transducers Vacuum Pressure Sensors Vacuum Gauge Controllers Vacuum Gauge Accessories Vacuum Gauge Calibration Legacy Vacuum Gauges Gas Analyzers Mass Spectrometers Tunable Filter Spectrometers FTIR Gas Analyzers NDIR Gas Analyzers Vacuum Flanges & Fittings ISO-KF Flanges & Fittings ISO-MF Flanges & Fittings CF Flanges & Fittings Butt Weld Flanges & Fittings Custom Vacuum Fabrication RF & Microwave Generators Microwave Generators RF Power Generators Pressure Controllers & Valves Pressure Controllers Vacuum Isolation Valves Downstream Exhaust Throttle Valves Upstream Flow Control Valves Gate Valves Plasma & Reactive Gas Solutions Remote Plasma Sources Ozone Generators & Systems Dissolved Gas Foreline Plasma Clean Systems Automation, Control & Sensing Heater Jackets & Traps Special Offers Virtual Booth Newport Ophir Spectra-Physics Atotech ESI Solutions Semiconductor Electronics and Packaging Specialty Industrial Support Global Service Technical Support Technical Resources Contact MKS Company About MKS Investor Relations News & Media Careers Contact Contact Us Online Corporate Offices Sales & Application Support Calibration, Service & Repairs Product Technical Support Products Vacuum Flanges & Fittings ISO-MF and ISO-BF Vacuum Flange Components ISO Vacuum Flange Centering Ring Seals ISO Centering Ring Buna-N O-Rings 100761920 Buna-N O-Ring, NW200 Size ISO-MF Vacuum Flange, 2-371 O-Ring Size Model: 100761920 Buna-N O-Ring, NW200 Size ISO-MF Vacuum Flange, 2-371 O-Ring Size Buna-N O-Ring, NW200 Size ISO-MF Vacuum Flange, 2-371 O-Ring Size Model: 100761920 Contact Us Loading... Request a Quote Add to List Add to List Create a New List List Name Required Create a New List Cancel Add to List Your Saved Lists: Preferred List" selected> Add to List Create a New List List Name Required or Create a New List Cancel Add to List 1 item(s) added to 100761920 Buna-N O-Ring, NW200 Size ISO-MF Vacuum Flange, 2-371 O-Ring Size Continue Shopping View All Saved Lists Compare Add to List Add to List Create a New List List Name Required Create a New List Cancel Add to List Your Saved Lists: Preferred List" selected> Add to List Create a New List List Name Required or Create a New List Cancel Add to List 1 item(s) added to 100761920 Buna-N O-Ring, NW200 Size ISO-MF Vacuum Flange, 2-371 O-Ring Size Continue Shopping View All Saved Lists Overview Overview The 100761920 Buna-N O-Ring is designed for use with size NW200 ISO-MF centering ring assemblies. This 2-371 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 76 accessory offers seals easier and is less expensive than similar Viton O-rings and can be used as a spare or replacement O-ring.
Product Series Overview ISO Centering Ring Buna-N O-Rings Technical Specs Technical Specs Component Type O-Ring Series Series 76 Flange Type ISO-MF Flange Size NW200 Material Buna-N Inner Diameter 8.48 in. (215 mm) Thickness 0.21 in. (5 mm) Dimension "A" 8.48 in. Dimension "B" 0.21 in. Technical Specs Component Type O-Ring Series Series 76 Flange Type ISO-MF Flange Size NW200 Material Buna-N Inner Diameter 8.48 in. (215 mm) Thickness 0.21 in. (5 mm) Dimension "A" 8.48 in. Dimension "B" 0.21 in. Buna-N O-Ring, NW200 Size ISO-MF Vacuum Flange, 2-371 O-Ring Size PART: 100761920 Contact Us Loading... Request a Quote Compare Add to List Add to List Create a New List List Name Required Create a New List Cancel Add to List Your Saved Lists: Preferred List" selected> Add to List Create a New List List Name Required or Create a New List Cancel Add to List 1 item(s) added to 100761920 Buna-N O-Ring, NW200 Size ISO-MF Vacuum Flange, 2-371 O-Ring Size Continue Shopping View All Saved Lists Overview Technical Specs Need help? Contact an Applications Specialist by sending us an email 100761920 - Drawings & CAD Additional CAD file downloads are not available for this product. CAD File Downloads: Loading... Download Close Close Close 100761920 - Drawings Additional drawings are not available for this product. Close Close 100761920©2026 MKS Inc. All rights reserved.
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To access this and other valuable technical resources, please sign in or register for a new online account. Cancel Add to Cart Buna-N O-Ring, NW200 Size ISO-MF Vacuum Flange, 2-371 O-Ring Size Part: 100761920 Availability: Contact Us Add to Cart Also available on Newport.com Qty: Availability: Contact Us Shop at Newport.com Ultra-High Velocity Learn More Invalid VAT ID
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