This nsn no longer has navy irpod requirements
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 5975-00-004-1458
NSN 6220-01-467-9141
NSN 6105-00-879-7157
NSN 6105-00-137-9521
NSN 6620-00-366-1365
NSN 5835-00-883-8182
NSN 6645-01-394-5149
NSN 5990-00-221-0878
NSN 5935-01-200-6221
NSN 6320-00-036-3688
NSN 6145-01-551-9414
NSN 6130-01-374-6718