Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FV-10-137-1A found under Screw Cap Hexagon H by Automatic Switch Company. The National Stock Number assigned to this part is 5305012664167, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like FV-10-137-1A.