4zw54 is the oem
A tapered item designed specifically for visually measuring the flow rate of liquids and gases under varying conditions. It may or may not have reference or indicator markings. Excludes tubing, glass.
Classification: Parts and accessories for instruments and apparatus for measuring or checking the flow, level, pressure or other variables of liquids or gases
NSN 5950-01-538-1411
NSN 2925-00-595-7525
NSN 6130-01-391-6087
NSN 5905-01-429-5188
NSN 4140-01-396-6198
NSN 5925-00-328-3885
NSN 6105-01-476-7393
NSN 5915-01-367-2056
NSN 5996-01-300-6823
NSN 5996-01-215-0944
NSN 5998-00-952-3008
NSN 5996-01-549-3032