Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GH S271 4001 R0537 found under Circuit Breaker by Akt. The National Stock Number assigned to this part is 5925123520763, 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 GH S271 4001 R0537.