Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 88-12250 ITEM 4 found under Grommet Nonmetallic by Young Engineering And Manufacturing. The National Stock Number assigned to this part is 5325014141008, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 88-12250 ITEM 4.