Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 342590L found under Fitting Ramp Suppor by A And M Aerospace Inc. The National Stock Number assigned to this part is 1560006735304, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 342590L.