Click to enlargeNW40 (KF40) Clamping Ring 

NW40 (KF40, QF40) Horseshoe Clamp
NW40 Spring Clamp with Blue Knob
NW40 Clamping Ring
Pack of 10 (NW40-150-CHK)

• 304 Stainless
• NW40 Series (KF, QF)
• High Vacuum Clamps (Klamp)

NW (KF) High Vacuum Hardware
• Fits KF, NW, QF Series Flanges & Fittings
• Fits Kwik-Flange, Quick Flanges & Fittings
• Quick Clamp

NW40 (KF40) Flange OD: Ø2.18"
• NW40 Tube OD: 1.50" (Typical)
• NW40 Centering Ring Counter Bore: 1.62"

NW40 High Vacuum Flange Equivalents
KF40, KF-40, K150, NW-40, QF40, ISO-QF

NW40 Horseshoe Spring Clamp with Plastic Knob


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All NW40 Hardware

Need Just One?

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NW40 Centering Rings

NW40 Clamps (All Types)

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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