Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PC1156-27 found under by Parmatic Pollution Control. The National Stock Number assigned to this part is 5920014772837, and the Federal Supply Class is 5920 Fuses Arresters Absorbers And Protector. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PC1156-27.