17 lb per cu ft density rating
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.
NSN 6220-01-604-9488
NSN 5895-01-141-9544
NSN 6650-01-162-8324
NSN 5915-01-147-5906
NSN 5910-00-503-4670
NSN 4140-00-593-4985
NSN 5960-01-223-6202
NSN 7035-01-577-5065
NSN 5935-01-021-3588
NSN 5990-01-104-6703
NSN 5998-01-628-9017
NSN 5930-01-256-1486