DN15 X 10 (1/2" X 3/8" NB) NPT 3000# FS GALVANISED HEX REDUCING BUSH A105N

Thread Side 1: 1/2" NPT Male
Suits an outside diameter (OD) of: 21.3mm
Thread Side 2: 3/8" NPT Female
Suits an outside diameter (OD) of: 17.15mm
Material: Forged Steel
Grade: A105N
Construction: Forged
Finish: Galvanised
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Reducing Bush, MXF, Hex Bush, Carbon Steel