Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D1251-332-XF50171 found under Seal Mechanical Rotary Shaft by John Crane Inc. The National Stock Number assigned to this part is 5330003742853, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D1251-332-XF50171.