Part No. Female Thread Female Thread SSFFA 02 1/8" BSP 1/8" BSP SSFFA 04 1/4" BSP 1/4" BSP SSFFA 06 3/8" BSP 3/8" BSP SSFFA 08 1/2" BSP 1/2" BSP SSFFA 12 3/4" BSP 3/4" BSP SSFFA 16 1" BSP 1" BSP Material Stainless Steel 304, 316, 316L, A2, A4 Finish Natural, Electropolished Threads BSPT BSP NPT NPTF