Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1560-1.5IN PC 8 found under O Ring by Staples And Pfeiffer Inc. The National Stock Number assigned to this part is 5331001675124, 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 1560-1.5IN PC 8.