The NW40-150-US is a 304 Stainless Steel Unbored Stub Blank Flange in the NW40 (KF40 / QF40) high vacuum flange family.
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Flange series: NW40 (also referenced as KF40, QF40, K150) – flange outer diameter ~ 2.18″.
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Tube size (“A”) = 1.50″.
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Stub length (“B”) = 1.00″.
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Material: 304 stainless steel.
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Function: this is a blank/un-bored stub flange (i.e., a weldable or plateable blank mount). It is used to cap or terminate a flange or to provide a weld stub for further custom fabrication.



