Used on american optical models r/s4000, r/s5000, r/s6000 and r/s7000 respirators; niosh approval no. Tc-23c-490/491; sole source required by statute 6.302
A self-contained unit designed for placement in the holder of a respirator or air line mask. It may consist of a filtering element of fibrous material such as felt, paper, or the like secured between two end plates; or it may be a cylindrical container of light weight construction having flat or slightly rounded ends which may be either perforated or of wire mesh, filled with charcoal or chemicals which absorb contaminants from the air passing through it. See also filter, respirator, air filtering.
NSN 6685-00-899-4890
NSN 6135-00-491-9864
NSN 6650-00-025-0289
NSN 5950-01-324-3280
NSN 6240-01-494-0514
NSN 2925-01-613-8015
NSN 5925-00-248-5734
NSN 6320-01-592-6248
NSN 5996-01-056-1736
NSN 5915-01-210-2709
NSN 6620-00-797-2591
NSN 6135-01-469-7574