20 pores per linear inch
A replaceable device designed to remove dust, pollen or other foreign matter from the air passing through it. The removal of particles is accomplished by porous, fibrous or shredded material (metallic or non-metallic) which is loosely woven or matted, the shape of which may be maintained by stiffening or binding material. It is designed to fit into a filter element, air conditioning or for direct application to air conditioners, ventilation systems, hot air furnaces, and electrical and electronic equipment which have retaining devices. It may be furnished in custom size form or in a continuous length. Excludes filtering pad, air cooler; and filtering roll, air conditioning. Excludes bulk materials not specifically designed for filtering. See also insulation blanket, thermal; plastic material, cellular; rubber sheet, cellular.
NSN 6240-01-589-7218
NSN 5935-01-090-0496
NSN 5996-00-470-7762
NSN 6650-00-431-4375
NSN 5950-00-826-5827
NSN 6320-01-202-8761
NSN 5930-01-120-9180
NSN 5985-01-209-0392
NSN 5999-00-298-2161
NSN 5920-00-529-0618
NSN 6645-01-356-3105
NSN 6135-00-951-3426