Cap:-Material = CNC Machined 304 Stainless Steel- Threads = 2” NPSM Loose 11.5” TPI-Vented= Yes/ No Based on your selection-Lanyard = Yes, Stainless Steel 8” W Alum Crossbar-Gasket = Buna-NThis 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.
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.