Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 123L10015-503 found under Lockcrank Main Gear by D F P Manufacturing Corp. The National Stock Number assigned to this part is 1560001726249, 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 123L10015-503.