Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1881-193A found under Sleeve Roller Main Landing Gear by Western Precision Inc. The National Stock Number assigned to this part is 1620011753013, 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 1881-193A.