Side 1 Thread: 3/8" BSPT Male x Male
Suits an outside diameter (OD) of: 17.15mm
Side 2 Thread: 1/8" BSPT Male x Male
Suits an outside diameter (OD) of: 10.29mm
Material: Malleable Iron
Finish: Black Self Colour

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 300 psi, Mild Steel (Formally referred to as Wrought Iron BS1740), EN 10241 & EN 10255




Alternative terminology:
Reducing Heagon Nipple, Mild Steel, Carbon Seel, Wrought Iron, Heavy Weight, Threaded, Screwed, Fittings.