Alternate material-polyurethane sponge
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 5998-01-363-4193
NSN 5960-01-577-5682
NSN 5975-00-034-4243
NSN 5975-00-565-1071
NSN 5998-00-146-7997
NSN 6650-00-597-7313
NSN 6150-01-254-3625
NSN 5895-00-446-2493
NSN 5905-01-130-3423
NSN 5855-01-450-8820
NSN 5990-00-099-0822
NSN 6105-00-684-6807