Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 44038 found under Brush Wire Boiler Tube by Weiler Corporation. The National Stock Number assigned to this part is 5120002237976, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 44038.