As differentiated by serial no. 6610a4096a1
An instrument for measuring the rate of flow of a fluid through a pipeline. This measurement is indicated on a graduated scale either by means of a float confined in a tube, or pointer connected to a vane, or piston and spring or the like. Excludes meter, fluid flow indicating, differential pressure; meter, fluid flow indicating, electromagnetic; and meter, fluid flow indicating, ultrasonic.
NSN 5915-00-341-6505
NSN 5945-01-027-1170
NSN 6135-01-282-4326
NSN 6610-01-434-4958
NSN 5915-01-422-8722
NSN 5960-00-642-9977
NSN 5990-00-543-0234
NSN 6110-00-922-5311
NSN 5945-01-025-1163
NSN 5925-01-331-6994
NSN 6650-00-256-9059
NSN 2925-00-862-8550