Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MM1116-1 ITEM 25 found under O Ring by Meggitt North Hollywood Inc. The National Stock Number assigned to this part is 5331002483835, 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 MM1116-1 ITEM 25.