Metering Jet (A-65). 07-00685. $10.95. Quantity ; Stromberg NAS3A1 Overhaul/Parts Manual. 07-02400. $9.70. Quantity There is only ONE float part number in the overhaul manual (p/n P16156) Overhaul STROMBERG NA-S3 carburetor as per STROMBERG Factory Service Manual and.Courtesy of Bomar Flying Service bomar.biz. Stromberg Carburetor NA-S3A1. Page 2. Page 3. Page 4. Page 5. Page 6. Page 7. Page 8.