Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7240-00-138-7985 found under Measure Liquid by General Services Administration Inc. The National Stock Number assigned to this part is 7240001387985, 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 7240-00-138-7985.