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 6220-01-050-0835
NSN 5915-01-198-0083
NSN 5930-00-655-9288
NSN 5930-01-538-9842
NSN 7035-01-642-2153
NSN 6685-01-330-7330
NSN 5950-01-573-8815
NSN 5975-01-648-7743
NSN 6320-01-512-2031
NSN 6135-00-025-6382
NSN 5975-00-411-6294
NSN 5930-01-495-1066