Cap:-Material = CNC Machined 6061 ALUM- Threads = 2” NPSM Loose 11.5” TPI-Vented= Yes/ No Based on your selection-Lanyard = Yes, Stainless Steel 8” W Alum Crossbar-Gasket = FKM VITONThis Cap Will Fit any of our 2" NPSM Necks in aluminum, Steel or Stainless
What does NPSM Loose Mean? NPSM stands for National Pipe Straight Mechanical. Loose means that we machine these on the higher end of the tolerance to account for Weld distortion to the neck and expansion and contraction throughout the seasons.
NOTE: THE VENTED VERSION OF THIS CAP IS SIMPLY A MACHINED GROOVE THAT BYPASSES THE GASKET IT WILL LEAK WHEN LIQUID SPLASHES AGAINST IT.
What does NPSM Loose Mean? NPSM stands for National Pipe Straight Mechanical. Loose means that we machine these on the higher end of the tolerance to account for Weld distortion to the neck and expansion and contraction throughout the seasons.