Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 42-0000253 found under Guide Shoe Assembly by General Dynamics Corporation. The National Stock Number assigned to this part is 1620015727466, and the Federal Supply Class is 1620 Aircraft Landing Gear Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 42-0000253.