Part number eco-7m, is in the naval shipboard foodservice equipment catalog for this oven. Star manufacturing changed the p/n only. The oven is the exact item shown in the navy catalog
A deck type oven having one or more baking spaces over 9 inches high.
Classification: Cooking stoves, ranges and ovens except microwave ovens, other than of a kind used for domestic purposes
NSN 6645-01-481-9834
NSN 6145-01-169-6487
NSN 6320-00-330-4327
NSN 6105-00-986-8231
NSN 5930-00-556-0307
NSN 5935-00-033-9545
NSN 5950-01-259-9159
NSN 5990-01-179-1000
NSN 5998-01-501-3069
NSN 6145-00-357-5010
NSN 6240-01-357-2289
NSN 6150-01-223-6147