Aluminum 2" Female BSP to 2" Male NPT Color_Blue Connections: The female threaded side

Connections: The female threaded side of this adapter will only connect to a male suction hose that is National Pipe Straight Hose (NPSH) or National Pipe Tapered (NPT)

The base is constructed of anodized aluminum

Lock Lever Spring is 316 stainless wire passivated AISI 316

When you apply pressure to the spring loaded knob it will retract and allow your piece of equipment to be held steady to the mount

the ASA was reorganized and became the United States of America Standards Institute (USASI)

Aluminum 2" Female BSP to 2" Male NPT Color_Blue Connections: The female threaded sideBritish Standard Pipe (BSP) can be most commonly found in Canada, UK, Europe, Asia and Australia. It is a finer thread than National Pipe Thread (NPT), and will not seal properly if used in conjunction with it. Two types of threads are used: British Standard Pipe Taper (BSPT) and British Standard Pipe Parallel (BSPP). British Standard Pipe Taper uses a tapered thread system, and sealant is provided to help secure the male and female connection.