Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 581R496H02 found under Compensator Volume Laser Cooling by Ame International Llc. The National Stock Number assigned to this part is 1270003552176, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 581R496H02.