Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PL52556A found under Plate Special by Ambac International Corporation. The National Stock Number assigned to this part is 2925007041527, and the Federal Supply Class is 2925 Engine Electrical System Components Aircraft Prime Moving. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PL52556A.