Product Information Female Thread: NPSM Select a Product Part NumberMaterialSealComponent MaterialFemale Thread Size FAB150AluminumBrass nut1-1/2" FAB250AluminumBrass nut2-1/2" FAB300AluminumBrass nut3" FAB400AluminumBrass nut4" FAB600AluminumBrass nut6" FBB125BrassBrass nut1-1/4" FBB150BrassBrass nut1-1/2" FBB200BrassBrass nut2" FBB250BrassBrass nut2-1/2" FBB300BrassBrass nut3" FBB400BrassBrass nut4" FCSB125Plated SteelRubber gasketBrass nut1-1/4" FCSB150Plated SteelRubber gasketBrass nut1-1/2" FCSB200Plated SteelRubber gasketBrass nut2" FCSB250Plated SteelRubber gasketBrass nut2-1/2" FCSB300Plated SteelRubber gasketBrass nut3" FCSB400Plated SteelRubber gasketBrass nut4" FCSM125Plated SteelRubber gasketPlated Iron nut1-1/4" FCSM150Plated SteelRubber gasketPlated Iron nut1-1/2" FCSM200Plated SteelRubber gasketPlated Iron nut2" FCSM250Plated SteelRubber gasketPlated Iron nut2-1/2" FCSM300Plated SteelRubber gasketPlated Iron nut3" FCSM400Plated SteelRubber gasketPlated Iron nut4" FCSM600Plated SteelRubber gasketPlated Iron nut6" S12Plated IronPlated Iron nut1" S17Plated IronPlated Iron nut1-1/4" S22Plated IronPlated Iron nut1-1/2" S32Plated IronPlated Iron nut2-1/2" S38Plated IronPlated Iron nut3" S42Plated IronPlated Iron nut4" S57Plated IronPlated Iron nut5" S62Plated IronPlated Iron nut6" SB17Plated IronBrass nut1-1/4" SB22Plated IronBrass nut1-1/2" SB27Plated IronBrass nut2" SB32Plated IronBrass nut2-1/2" SB38Plated IronBrass nut3" SB42Plated IronBrass nut4" SB57Plated IronBrass nut5" SB62Plated IronBrass nut6" SB12Plated IronBrass nut1" S27Plated IronPlated Iron nut2" FCSB600Plated SteelRubber gasketBrass nut6" FAB200AluminumBrass nut2"