An item which, by rising and descending within a gage tube in response to a rate of flow, indicates on a graduated scale the volume of flow.
NSN 6645-01-393-5128
NSN 5835-01-441-4746
NSN 4140-01-130-6237
NSN 6145-00-203-7776
NSN 5965-00-498-8177
NSN 5905-01-435-5379
NSN 6645-01-452-9495
NSN 5996-01-043-2105
NSN 6645-01-577-2306
NSN 6145-01-537-0572
NSN 7035-01-033-3007
NSN 6620-01-288-4922