Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HUMISEAL1A20-1LTR found under by Humiseal Division. The National Stock Number assigned to this part is 5970016145602, and the Federal Supply Class is 5970 Electrical Insulators And Insulating Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HUMISEAL1A20-1LTR.