Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number POP-1000 BLACK found under Cap Protective Dust by Heyco Inc. The National Stock Number assigned to this part is 5340015094719, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like POP-1000 BLACK.