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Boyd 4.0" NPSM Loose CNC Machined Aluminum Cap

Boyd 4.0" NPSM Loose CNC Machined Aluminum Cap

Availibilty : Typically In-stock, Additional QTY's available Contact us

20 in stock

SKU:81074-NV

Regular price $67.00
Regular price Sale price $67.00
Sale Sold out
Shipping calculated at checkout.
Vent Option

Cap:
-Material =  CNC Machined 6061 T6 Aluminum
- Threads = 4” NPSM  Loose 8TPI
-Vented= Yes/ No  Based on your selection
-Lanyard = Yes, Stainless Steel 8” W Alum Crossbar
-Gasket = FKM VITON
This Cap Will only Fit our 4.0" NPSM Neck


SEE SKU # 81075 FOR THE NECK. Shop Neck Here


NOTE:  THE VENTED VERSION OF THIS CAP IS SIMPLY A MACHINED GROOVE THAT BYPASSES THE GASKET IT WILL LEAK WHEN LIQUID SPLASHES AGAINST IT.  It's recommended that you choose a NON Vented cap and utilize a fitting on the tank as your tank vent.

 


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. 

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