Product Information Material: Hardcoat Aluminum Select a Product Part NumberFemale ThreadFemale Thread SizeMale ThreadMale Thread Size N56-40S45TNPSH4"NPT4-1/2" N56-40F45TNST (NH)4"NPT4-1/2" N56-45T25FNPT4-1/2"NST (NH)2-1/2" N56-45T30FNPT4-1/2"NST (NH)3" N56-45T45FNPT4-1/2"NST (NH)4-1/2" N56-45T60TNPT4-1/2"NPT6" N56-60F60TNST (NH)6"NPT6" N56-45T40FNPT4-1/2"NST (NH)4" N56-45T50FNPT4-1/2"NST (NH)5" N56-60F45FNST (NH)6"NST (NH)4-1/2" N56-40T45TNPT4"NPT4-1/2" N56-45T25TNPT4-1/2"NPT2-1/2" N56-45T40TNPT4-1/2"NPT4" N56-45T60FNPT4-1/2"NST (NH)6" N56-50F25FNST (NH)5"NST (NH)2-1/2" N56-50F45TNST (NH)5"NPT4-1/2" N56-45F45TNST (NH)4-1/2"NPT4-1/2" N56-45T50TNPT4-1/2"NPT5" N56-50S45TNPSH5"NPT4-1/2" N56-50T45TNPT5"NPT4-1/2" N56-60S45TNPSH6"NPT4-1/2" N56-60T45TNPT6"NPT4-1/2" N56-45F40FNST (NH)4-1/2"NST (NH)4" N56-45S45TNPSH4-1/2"NPT4-1/2" N56-45T30TNPT4-1/2"NPT3" N56-45T45TNPT4-1/2"NPT4-1/2" N56-60F45TNST (NH)6"NPT4-1/2" N56-40F25FNST (NH)4"NST (NH)2-1/2"