600 gph media filter system; fourth layer, filter sand; size: number 20 mesh, 0.85 mm; uniformity: 1.40 max; specific gravity greater than 2.5; bulk density: 130 pounds per foot
Classification: Sands of all kinds, natural, whether or not colored, other than silica, quartz, or metal-bearing sands of chapter 26
NSN 5855-01-363-1143
NSN 2925-01-505-1666
NSN 6320-01-552-8721
NSN 6645-01-355-9733
NSN 5985-01-462-4435
NSN 5990-01-357-2453
NSN 6105-00-932-5309
NSN 5930-01-504-5289
NSN 5950-01-044-5704
NSN 5998-01-654-9435
NSN 5999-01-041-2709
NSN 5990-01-206-3606