Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GUIDE REFBOOK82 found under Indicator Sight Liquid by Schnitzer Alloy Products Co Inc. The National Stock Number assigned to this part is 6680012284972, 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 GUIDE REFBOOK82.