Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PL41E500-450PC46 found under Washer Flat by Kapl Inc. The National Stock Number assigned to this part is 5310004629127, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PL41E500-450PC46.