A group of marker, identificaiton having different characteristics, they may or may not be used together.
NSN 6610-01-122-0064
NSN 5905-01-453-5243
NSN 5950-00-171-1888
NSN 5855-01-073-9686
NSN 5990-01-408-6554
NSN 5990-00-754-2842
NSN 5960-00-091-8729
NSN 5910-00-729-6949
NSN 2925-00-159-9003
NSN 6610-01-389-0620
NSN 6220-00-816-8131
NSN 5855-00-631-4565