Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AL4532-1615-RP7537 found under Case Medical Instru by Hardigg Industries Inc. The National Stock Number assigned to this part is 6545015029173, 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 AL4532-1615-RP7537.