AirVac VM175 Belt (single) AirVac VM175 Fits AirVac hand-held power nozzle model VM175. The belt number is 6323-01-X and is listed in the manual as part 6323. The number 60 S3M204 can be found on the belt. Belt Demensions: 7/32' Wide, 4' Long (Flattened), Distance between cog peaks 1/8'