DN15 X 10 (1/2" X 3/8" NB) NPT BLACK FORGED STEEL REDUCING BUSH

Side 1 threaded: 1/2" NPT Male
Side 1 suits an outside diameter (OD) of: 21.3mm
Side 2 threaded: 3/8" NPT Female
Side 2 suits suits an outside diameter (OD) of: 17.15mm

Material: Forged Steel A105N
Finish: Black Self Colour

Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97

Alternative terminology:
Forged Steel, Carbon Steel, , Reducing Bush, Threaded, Screwed, , Fittings.