Male BSP Parallel to Female BSP Parallel Connector

Male BSP Parallel to Female BSP Parallel Connector

BSP threads seal in the same way as NPT threads but are different dimensions.

BSP is very common on many types of European equipment as well as some Japanese machinery.

BSP threads may be tapered (BSPT), but more often are parallel threads (BSPP), with females relying on a cone seat for sealing.

Male parallel threads seal with a chamfered end on a female with a cone seat, with a copper gasket on a flat seat, with an O-ring in a recessed port, or finally, with a bonded seal in a machined face port.