MRC:
Indicates the designed use of the item.ALCD
Usage Design:
For use w/air, gas, oi., steam or water, if non-corrosive to brass
MRC:
A feature of the item of supply which must be specifically recorded when the reference number covers a range of items.ZZZY
Reference Number Differentiating Characteristics:
As differentiated by actuation type, actuating element material, scale type, dial size, scale marking, case material, case surface treatment, diameter, depth, bezel type, material, surface treatment, connection quantity, connection type, connection location, connection size, and mounting method