Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 57A42 found under Inspection Light Fu by Blowers Llc. The National Stock Number assigned to this part is 6230005938576, and the Federal Supply Class is 6230 Electric Portable And Hand Lighting Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 57A42.