Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4F33138-103B found under Adapter Aircraft Jacking Point by K And K Precision Manufacturing Inc. The National Stock Number assigned to this part is 1730012808678, 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 4F33138-103B.