Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 442 10 1 1 4IN found under Seal Assembly Shaft Spring Loaded by A W Chesterton Company. The National Stock Number assigned to this part is 5330014474721, 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 442 10 1 1 4IN.