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 6610-01-141-2994
NSN 5960-00-840-7103
NSN 5990-00-230-5351
NSN 6150-01-433-3462
NSN 5945-01-400-1145
NSN 5925-01-416-9204
NSN 6135-01-095-9532
NSN 5975-00-056-8600
NSN 5975-01-447-3270
NSN 6110-01-364-0966
NSN 5965-00-035-4556
NSN 5985-01-530-6703