500 Series Part NumberEnd Connection TypeEnd Connection Inlet SizeEnd Connection Outlet SizeOrificeAB1B2CDEFGH 500Male NPT1/81/80.0471.810.910.910.400.382.751.380.3817/32 502Male NPT1/41/40.0471.810.910.910.400.382.751.380.3817/32 503Male NPT to Fractional Tube Fitting1/43/80.0472.110.911.200.400.382.751.380.3817/32 504Fractional Tube Fitting1/81/80.0472.341.171.170.400.382.751.380.3817/32 506Fractional Tube Fitting1/41/40.0472.401.201.200.400.382.751.380.3817/32 508Male NPT to Fractional Tube Fitting1/81/40.0472.110.911.200.400.382.751.380.3817/32 509Male NPT to Fractional Tube Fitting1/41/40.0472.110.911.200.400.382.751.380.3817/32 510Female NPT1/81/80.0471.820.910.910.400.382.751.380.3817/32 512Fractional Tube Fitting3/83/80.0472.401.201.200.400.382.751.380.3817/32 514Female NPT1/41/40.0472.001.001.000.400.382.811.380.3817/32 520Fractional Tube Fitting 1/2 1/2 0.250 2.79 1.40 1.40 0.47 0.44 2.53 1.75 0.38 25/32 500-1Male NPT1/81/80.0621.810.910.910.400.382.691.380.3817/32 500-3Male NPT1/81/80.0781.810.910.910.400.382.691.380.3817/32 500-5Male NPT1/81/80.0941.810.910.910.400.382.691.380.3817/32 500-7Male NPT1/81/80.1251.810.910.910.400.382.751.380.3817/32 500-9Male NPT1/81/80.1441.810.910.910.400.382.751.380.3817/32 502-1Male NPT1/41/40.0621.810.910.910.400.382.691.380.3817/32 502-3Male NPT1/41/40.0781.810.910.910.400.382.691.380.3817/32 502-5Male NPT1/41/40.0941.810.910.910.400.382.691.380.3817/32 502-7Male NPT1/41/40.1251.810.910.910.400.382.751.380.3817/32 502-9Male NPT1/41/40.1441.810.910.910.400.382.751.380.3817/32 503-1Male NPT to Fractional Tube Fitting1/43/80.0622.110.911.200.400.382.691.380.3817/32 503-3Male NPT to Fractional Tube Fitting1/43/80.0782.110.911.200.400.382.691.380.3817/32 503-5Male NPT to Fractional Tube Fitting1/43/80.0942.110.911.200.400.382.691.380.3817/32 503-7Male NPT to Fractional Tube Fitting1/43/80.1252.110.911.200.400.382.751.380.3817/32 503-9Male NPT to Fractional Tube Fitting1/43/80.1442.110.911.200.400.382.751.380.3817/32 504-1Fractional Tube Fitting1/81/80.0622.341.171.170.400.382.691.380.3817/32 504-3Fractional Tube Fitting1/81/80.0782.341.171.170.400.382.691.380.3817/32 506-1Fractional Tube Fitting1/41/40.0622.401.201.200.400.382.691.380.3817/32 506-3Fractional Tube Fitting1/41/40.0782.401.201.200.400.382.691.380.3817/32 506-5Fractional Tube Fitting1/41/40.0942.401.201.200.400.382.691.380.3817/32 506-7Fractional Tube Fitting1/41/40.1252.401.201.200.400.382.751.380.3817/32 506-9Fractional Tube Fitting1/41/40.1442.401.201.200.400.382.751.380.3817/32 508-1Male NPT to Fractional Tube Fitting1/81/40.0622.110.911.200.400.382.691.380.3817/32 508-3Male NPT to Fractional Tube Fitting1/81/40.0782.110.911.200.400.382.691.380.3817/32 508-5Male NPT to Fractional Tube Fitting1/81/40.0942.110.911.200.400.382.691.380.3817/32 508-7Male NPT to Fractional Tube Fitting1/81/40.1252.110.911.200.400.382.751.380.3817/32 508-9Male NPT to Fractional Tube Fitting1/81/40.1442.110.911.200.400.382.751.380.3817/32 509-1Male NPT to Fractional Tube Fitting1/41/40.0622.110.911.200.400.382.691.380.3817/32 509-3Male NPT to Fractional Tube Fitting1/41/40.0782.110.911.200.400.382.691.380.3817/32 509-5Male NPT to Fractional Tube Fitting1/41/40.0942.110.911.200.400.382.691.380.3817/32 509-7Male NPT to Fractional Tube Fitting1/41/40.1252.110.911.200.400.382.751.380.3817/32 509-9Male NPT to Fractional Tube Fitting1/41/40.1442.110.911.200.400.382.751.380.3817/32 510-1Female NPT1/81/80.0621.820.910.910.400.382.691.380.3817/32 510-3Female NPT1/81/80.0781.820.910.910.400.382.691.380.3817/32 510-5Female NPT1/81/80.0941.820.910.910.400.382.691.380.3817/32 510-7Female NPT1/81/80.1251.820.910.910.400.382.751.380.3817/32 510-9Female NPT1/81/80.1441.820.910.910.400.382.751.380.3817/32 512-1Fractional Tube Fitting3/83/80.0622.401.201.200.400.382.691.380.3817/32 512-3Fractional Tube Fitting3/83/80.0782.401.201.200.400.382.691.380.3817/32 512-5Fractional Tube Fitting3/83/80.0942.401.201.200.400.382.691.380.3817/32 512-7Fractional Tube Fitting3/83/80.1252.401.201.200.400.382.751.380.3817/32 512-9Fractional Tube Fitting3/83/80.1442.401.201.200.400.382.751.380.3817/32 514-1Female NPT1/41/40.0622.001.001.000.400.382.751.380.3817/32 514-3Female NPT1/41/40.0782.001.001.000.400.382.751.380.3817/32 514-5Female NPT1/41/40.0942.001.001.000.400.382.751.380.3817/32 514-7Female NPT1/41/40.1252.001.001.000.400.382.811.380.3817/32 514-9Female NPT1/41/40.1442.001.001.000.400.382.811.380.3817/32 502-11Male NPT1/41/40.1721.810.910.910.400.382.751.380.3817/32 503-11Male NPT to Fractional Tube Fitting1/43/80.1722.110.911.200.400.382.751.380.3817/32 506-11Fractional Tube Fitting1/41/40.1722.401.201.200.400.382.751.380.3817/32 509-11Male NPT to Fractional Tube Fitting1/41/40.1722.110.911.200.400.382.751.380.3817/32 510-11Female NPT1/81/80.1721.820.910.910.400.382.751.380.3817/32 512-11Fractional Tube Fitting3/83/80.1722.401.201.200.400.382.751.380.3817/32 514-11Female NPT1/41/40.1722.001.001.000.400.382.811.380.3817/32 514-13Female NPT1/41/40.2502.301.151.150.400.383.221.380.3825/32