Charcoal gray; inside diameter is any that is acceptable; style designator is a22 roll type w/hollow core; reference number differentiating characteristics are 1/2 inch thick, 30 inches wide.
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 6645-00-928-7208
NSN 5998-00-984-0185
NSN 4140-01-479-4257
NSN 5930-01-160-0235
NSN 5999-00-247-5438
NSN 5950-00-559-1248
NSN 5960-01-485-0437
NSN 5998-00-959-2283
NSN 6220-01-359-4857
NSN 5905-01-256-8069
NSN 5925-01-296-0093
NSN 6150-00-371-3540