Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PK879 found under Parts Kit Stack by Jayem Aerospace Corporation. The National Stock Number assigned to this part is 2590012028154, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PK879.