MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Aluminum bronze; nickel plated; 1.77 in. O/a lg, 0.173 in. Id, 0.311 in. Od on unthd end 0.365 in. Lg, 0.363 in. Od body 0.86 in. Lg, 7/16-20 unf 2a thd 0.54 in. Lg on threaded end
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 valves cleaned for oxygen service
