Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 70-1521-052 found under Cushion Seat Watercraft by Watercraft America Inc. The National Stock Number assigned to this part is 2090013671010, and the Federal Supply Class is 2090 Miscellaneous Ship And Marine Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 70-1521-052.