$61.00
Cornell A14381-12-SD Lockscrew, .75NC x 1.75″, 18-8 stainless steel socket-head fastener for compatible pump impeller assemblies.
Cornell’s documentation makes the replacement requirement unusually important here—the manufacturer states that the impeller lockscrew should be replaced with the proper new lockscrew when the impeller is reinstalled.
The Cornell .75NC x 1.75″ Lockscrew Kit is a replacement impeller fastening component for compatible Cornell pump assemblies. Cornell documentation identifies this lockscrew as Part #A14381-12-SD, described as a .75NC x 1.75″ socket-head 18-8 stainless steel lockscrew. It is used in applications including the Cornell 6NHTB19 impeller assembly.
The lockscrew secures the impeller to the pump shaft and works with the impeller washer to maintain a properly assembled rotating system. Because this fastener performs a critical function within the impeller assembly, proper installation and condition are important to reliable pump operation.
Cornell specifically recommends replacing the impeller lockscrew rather than routinely reusing the old fastener. Cornell’s installation instructions specify that the .75-10 UNC stainless steel lockscrew is torqued to 135 ft-lb and uses Loctite 262 on the lockscrew and shaft threads. Cornell also cautions against using the lockscrew itself to install or press the impeller onto the shaft.
Verify your pump model, existing lockscrew, and Cornell part number before ordering.
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