A group of marker, identificaiton having different characteristics, they may or may not be used together.
NSN 6685-01-244-3226
NSN 5835-00-498-8189
NSN 6145-01-141-6804
NSN 5895-01-287-6792
NSN 5950-01-071-8538
NSN 6240-00-765-4220
NSN 5990-00-332-9426
NSN 5998-00-456-0864
NSN 6135-00-062-5080
NSN 5965-01-238-3900
NSN 5925-01-026-9649
NSN 6135-00-593-6831