The 50/50 cotton-nylon blend uniforms worn by most sailors aboard ships will burn and melt until they`re completely consumed.
In contrast, Army and Marine combat uniforms are designed to be self-extinguishing and are made of a mix including flame-resistant rayon.
The test results did not surprise Navy leaders.
The Navy removed the requirement for all sailors to wear flame-resistant uniforms at sea in 1996.
Sailors in specific jobs are still issued flame-resistant clothing.