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NW40 Centering Ring Without O-Ring

NW40 Centering Ring
NO O-Ring
6061 T6 Aluminum
NW40 (KF40) High Vacuum Hardware

• A: 1.57"
• B: 1.61"
• C: 0.32"
• D: 0.15"

Fits NW40 Flange Series Equivalents:
KF40, KF-40, NW-40 & QF40

NW40 Centering Ring Without O-Ring


Click to enlarge
Click to enlarge
All NW40 Hardware

NW40 O-Rings (All)

LDS will be CLOSED due to Hurricane Ian
Wednesday, September 28, 2022 and will
Reopen on Friday, September 30, 2022
Weather and Utilities Permitting

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.
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.