Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M237-9443 found under Frame Section Struc by Heil Trailer International Co. The National Stock Number assigned to this part is 2510015430030, and the Federal Supply Class is 2510 Vehicular Cab Body And Frame Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M237-9443.