Product Information Material: Cast Brass Select a Product Part NumberMale ThreadMale Thread Size DMP2525FNST (NH), NST (NH)2-1/2", 2-1/2" DMP15F15TNST (NH), NPT1-1/2", 1-1/2" DMP25F25TNST (NH), NPT2-1/2", 2-1/2" DMP2525NPSH, NPSH2-1/2", 2-1/2" DMP15F15SNST (NH), NPSH1-1/2", 1-1/2" DMP1515FNST (NH), NST (NH)1-1/2", 1-1/2" DMP25F25SNST (NH), NPSH2-1/2", 2-1/2" DMP15S15TNPSH, NPT1-1/2", 1-1/2" DMP1515NPSH, NPSH1-1/2", 1-1/2"