Click to enlargeNW40 to 1-3/8" Quick Coupling A: 1.39" B: 2.1"

NW40-Q138-OS
NW40 to 1.38" Quick Connect Coupling
Overstock Price
• Compression Type Quick Disconnect
• Compression Port
• For tube connections & tubulated gauges
• NW40 (KF40) Vacuum Coupling
• 304 Stainless

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

NW40 High Vacuum Flange Equivalents
KF40, KF-40, K150, NW-40, QF40, ISO-QF
NW40-Q138-OS Compare to: QF40XVC137 P104168 734032 K150XDS-138 1000015 QF40XQD138-2.28 NW40-Q138-VE


NW40 Quick Coupling To
1-3/8" Tube Size
(NW40-Q138-OS)
NW40-Q138-OSPrice: $270.65Overstock: $73.00

Click to enlarge
Click to enlarge
138 Series (1-3/8") O-Ring, Viton


All NW40 Hardware


Click to enlarge
Click to enlarge
NW Quick Couplings (ALL)


Quick Couplings (ALL)



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

***NW40 Flange Accessories Available Below***
NW40 Centering Rings
NW40 Clamps, All Types
NW40 Plastic Caps

Contact LDS Vacuum with any questions:
Phone (407)862-4643 via Fax (407)862-8723 or
info@ldsvacuum.com

LDS Vacuum Products is a 100% woman owned company and
certified Woman Owned Small Business (WOSB)
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