Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4F-419M-12 found under Insoles Footwear by Knit Rite Inc. The National Stock Number assigned to this part is 8335012607467, and the Federal Supply Class is 8335 Shoe Findings And Soling Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4F-419M-12.