2530-12-371-1900

5996-37-519-1181 5996375191181 375191181 is an electronic device whose audio frequency input signals control power from a source independant of the input signal and delivers audio frequency output signals of greater amplitude with respect to current and/or voltage. the output signals characteristics are uniformly related to the input signals. it operates at frequencies of 20 kilohertzs and below. it may or may not have signal switching capabilities.

4130-01-519-1181 4130015191181 015191181 is 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 nonmetallic) which is loosely woven or matted and confined in a frame or retained between perforated sheets of firmer material. it is designed to fit into air conditioners, ventilation systems and hot air furnaces. it may have facilities for radio frequency/electromagnetic interference shielding. the filter may be cleaned by the use of compressed air, blown through the filter element, or by using water and a suitable detergent for cleaning purposes which would extend the life of the filter.

4720-14-519-1181 4720145191181 145191181 is a flexible, tubular item having a nonmetallic tube inner conveying surface and one or more reinforcement layers of a metallic or nonmetallic material. it is designed to convey gasses, liquids, or solids. for items with fittings on one or both ends, see hose assembly, nonmetallic. excludes hose, air duct; and hose air duct, air breathing.

5970-99-519-1181 5970995191181 995191181 PAD,INSULATING

6240-00-519-1181 6240005191181 005191181