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 7035-00-079-7189
NSN 5920-00-156-0840
NSN 4140-00-552-7370
NSN 5915-01-610-1659
NSN 5999-00-908-4118
NSN 6150-00-275-1936
NSN 5925-01-460-3043
NSN 6650-01-217-9304
NSN 6150-01-534-3379
NSN 5920-01-160-0057
NSN 5935-01-277-9467
NSN 5975-00-905-0951