Hex Nipple NPT To BSPP Product Specification Part No. NPT Thread (M) BSPT Thread (M) 610SP-0202 1/8 1/8 610SP-0404 1/4 1/4 610SP-0606 3/8 3/8 610SP-0808 1/2 1/2 610SP-1212 3/4 3/4 610SP-1616 1 1