Adapter NPT To BSPP Product Specification Part No. NPT Thread (F) BSPP Thread (M) 603SP-0202 1/8 1/8 603SP-0404 1/4 1/4 603SP-0606 3/8 3/8 603SP-0808 1/2 1/2 603SP-1212 3/4 3/4 603SP-1414 1 1