Click to enlargeNW25 Centering Ring
Aluminum/Viton O-Ring
A: 0.98"
B: 0.21"

• NW25 (KF25) Series
• Aluminum Centering Ring Viton O-Ring

NW25 Series Aluminum Centering Ring
with Viton (Fluorocarbon, FKM) O-Ring

Viton® Replacement O'Ring
• 200°C Maximum
• Fluorocarbon, FKM
• NW25 (KF25) High Vacuum Hardware

Fits NW25 Flange Series Equivalents:
KF25, KF-25, K100, NW-25, QF25, ISO-QF
NW25-100-AR-V NW25-100-AR-V-OS

NW25 Centering Rings

NW25-ARV-PK25Price: $242.50Sale: $131.00

Click to enlargeAll NW25 Hardware

Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
The logos and/or trademarks appearing on this page are not owned by or registered to LDS but, rather, designate products sold by LDS, and are owned and/or registered to the manufacturers or suppliers of the products.
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There is a global helium shortage. Each time an MRI is performed, helium is used. Please rethink your helium balloon purchase.