Used for acid spot testing to differentiate between carbon steel and molydbate steel
NSN 5835-01-297-1909
NSN 6240-00-474-5802
NSN 5985-01-141-7059
NSN 6130-01-449-0782
NSN 5998-01-593-7076
NSN 5920-00-170-9081
NSN 5996-00-975-2789
NSN 6645-01-050-9794
NSN 2925-00-925-0545
NSN 5925-01-432-0149
NSN 5905-01-180-8108
NSN 5915-00-882-5531