Each bt has a flip-top cap
Classification: Diagnostic or lab reagents on a backing, prepared diag/lab reagents whether or not on a backing, not of heading 3002 or 3006; certified ref materials
NSN 6645-01-368-1508
NSN 6620-01-457-9476
NSN 6610-01-299-7171
NSN 6685-01-473-8607
NSN 7035-01-578-6232
NSN 5855-01-568-5019
NSN 6150-01-204-2826
NSN 5960-00-140-9583
NSN 5945-01-020-7897
NSN 6150-00-839-6924
NSN 6645-01-460-9671
NSN 5965-01-250-8542