Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GS2221-0605-W found under Case Medical Instru by Hardigg Industries Inc. The National Stock Number assigned to this part is 6545014983132, 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 GS2221-0605-W.