Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 633-8156-29 found under Plate Retaining Spe by Aqua Chem Inc. The National Stock Number assigned to this part is 5342012807267, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 633-8156-29.