P/N Diameter Model OEM P/N Materials in Stock
D1177 1.375" Mark 3 Group 1 AY50691A

316ss

Hastelloy C

Zirconium

D1Z177 1.125" Mark 2 Group 1 AY39475A

316ss

DC 8

Hastelloy C

Titanium

Zirconium

D2177 1.875" Mark 3 Group 2 AY38913AA

316ss

DC 8

Hastelloy C

Nickel

Titanium

Zirconium

D3177 2.625" Mark 3 Grp 3 BY39477A

316ss

Nickel