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 4140-00-337-6631
NSN 6320-00-931-4855
NSN 6150-00-258-9055
NSN 5985-01-391-6074
NSN 5998-01-513-8815
NSN 5855-01-505-5144
NSN 7035-01-074-2343
NSN 6610-01-549-8006
NSN 5835-01-327-0770
NSN 6145-01-333-8191
NSN 5965-00-303-9701
NSN 6610-01-487-4626