Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K28-10731-01 found under Shield Circuit Breaker by Klinge Corporation. The National Stock Number assigned to this part is 5925016126536, 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 K28-10731-01.