Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 00.4.609.5003 found under Circuit Breaker by Piller Germany Gmbh And Co Kg. The National Stock Number assigned to this part is 5925121769713, and the Federal Supply Class is 5925 Circuit Breakers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 00.4.609.5003.