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 5998-01-237-2541
NSN 6220-01-646-5501
NSN 5925-00-108-5385
NSN 6135-01-054-2462
NSN 5960-01-429-5897
NSN 6220-00-268-7923
NSN 5998-01-398-1873
NSN 5945-01-535-3698
NSN 4140-01-596-4803
NSN 5960-01-462-1864
NSN 5950-01-580-0598
NSN 6610-00-076-5613