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 6650-01-571-5430
NSN 6685-01-380-2998
NSN 6320-01-531-4997
NSN 6130-00-170-4844
NSN 6110-00-455-9881
NSN 6150-01-530-9214
NSN 6105-00-267-6954
NSN 6240-01-069-4711
NSN 5965-01-249-6349
NSN 5960-01-082-4491
NSN 6240-01-076-5895
NSN 5998-01-528-7829