"THIS NSN IS USED TO PURCHASE A MINIMUM OF 1 AND A MAXIMUM OF 39 CONTAINERS, TO PURCHASE A MINIMUM OF 40 AND A MAXIMUM OF 119 CONTAINERS USE NSN 3439-01-407-7658, TO PURCHASE A MINIMUM OF 120 OR MORE CONTAINERS USE NSN3439-01-407-7660. CERTIFICATION: PWA133G; RR9507/21."