Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number Z81-01193 found under Spacer Silicone St by The Protective Group Inc. The National Stock Number assigned to this part is 5365015388447, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like Z81-01193.