Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number D88244 ITEM 27 found under Ring Disk by Short Thomas A Co. The National Stock Number assigned to this part is 4820013358850, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like D88244 ITEM 27.