"THIS NSN IS USED TO PURCHASE A MINIMUM OF 60 OR MORE CONTAINERS, TO PURCHASE A MINIMUM OF 1 TO A MAXIMUM OF 19 CONTAINERS USE NSN 3439-01-397-4875, TO PURCHASE A MINIMUM OF 20 TO A MAXIMUM OF 59 CONTAINERS USE NSN 3439-01-407-7664. CERTIFICATION:RR 9507/42 ISS.1"