Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R6F3-2M-SN-MLR (R134A found under Refrigerator Freezer Mechanical by Cospolich Inc. The National Stock Number assigned to this part is 4110015456438, and the Federal Supply Class is 4110 Refrigeration Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R6F3-2M-SN-MLR (R134A.