Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 144A9738P3 found under Insulator Washer by Phoenix Specialty Mfg Co Inc. The National Stock Number assigned to this part is 5970011312938, 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 144A9738P3.