Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4F70077-107A found under Seal Nonmetallic Sp by Yama Mfg Co Incorporated. The National Stock Number assigned to this part is 5330012080011, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4F70077-107A.