Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20394 ITEM 13A found under Parts Kit Seal Replacement Mecha by Rosco Mfg Co. The National Stock Number assigned to this part is 5330014080659, 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 20394 ITEM 13A.