Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 28.37.0025.1 found under Battery Kit Tron40s by Radio Holland Group. The National Stock Number assigned to this part is 6240251505131, and the Federal Supply Class is 6240 Electric Lamps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 28.37.0025.1.