This item is non magnetic. Probably non sparking brass. Stamped USN. Anyone have any idea what it is? What it is used for? Any ideas where to look for an answer.
This item is non magnetic. Probably non sparking brass. Stamped USN. Anyone have any idea what it is? What it is used for? Any ideas where to look for an answer.
You stuck forcibly that into a quart can of oil and then poured the oil into the engine. Also works with any other fluid.
Still found to this day in similar configurations in garages.
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