MIL-T-8808B, MILITARY SPECIFICATION, TUBING, STEEL, CORROSION-RESISTANT (18-8 STABILIZED), AIRCRAFT HYDRAULIC QUALITY (8 APR 1981) [S/S BY SAE-AMS5556 AND SAE-AMS5557]., This specification covers seamless or welded and drawn corrosion-resistant steel tubing in the annealed condition.