Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PLC-11440 ITEM 7 found under O Ring by Cpv Manufacturing Inc. The National Stock Number assigned to this part is 5331001661090, 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 PLC-11440 ITEM 7.