Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 38620 found under Nut Self Locking Assembled Washe by Ace Hose Reel Co. The National Stock Number assigned to this part is 5310001532437, 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 38620.