Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B198000037 found under Filter Assembly Water Purificati by Sea Recovery Corporation. The National Stock Number assigned to this part is 4610016139314, and the Federal Supply Class is 4610 Water Purification Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B198000037.