2510-12-374-8902

4720-12-178-1779 4720121781779 121781779 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.

5330-00-178-1779 5330001781779 001781779

5977-15-178-1779 5977151781779 151781779 is an item consisting of two or more holder, electrical contact brush on a common mounting or mounted on each other, or one holder, electrical contact brush mounted on a bracket. may include facilities for applying pressure to the brush(es) and may also be furnished with the brush(es). for items consisting of two or more brush holders (boxes) cast as an inseparable unit, see holder, electrical contact brush. see also ring, holder, electrical brush.

5330-01-178-1779 5330011781779 011781779 is a deformable material which prevents the passage of matter through the joint formed when two faces are joined. it may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. it may be made to any predetermined dimension and shape. excludes flat disks, items made of felt material and items having joints. for round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. excludes disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.