Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 445D741SUB1PC20 found under Fastener Assembly by Westinghouse Electric Corp. The National Stock Number assigned to this part is 5342007031807, 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 445D741SUB1PC20.