A group of marker, identificaiton having different characteristics, they may or may not be used together.
NSN 5920-00-221-6439
NSN 5925-01-254-4781
NSN 6685-00-661-2347
NSN 5960-01-389-9941
NSN 4140-01-037-8737
NSN 5998-01-062-0789
NSN 6130-01-152-6718
NSN 6320-01-160-3730
NSN 6105-01-464-3777
NSN 5996-00-056-7153
NSN 5965-01-293-0121
NSN 6110-01-323-1105