A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Slovenia 
Malaysia 
Australia 
France 
United Kingdom 
Netherlands 
Greece 
NATO Maintenance and Supply Agency Classification: Gaskets,washers & other seals
NSN 5895-01-097-2988
NSN 5960-00-836-3058
NSN 5960-00-497-4877
NSN 6105-00-202-2469
NSN 6650-01-459-7155
NSN 6135-00-145-8884
NSN 6650-01-503-5419
NSN 5835-00-921-1662
NSN 7035-01-087-7727
NSN 6130-01-242-9778
NSN 5920-01-364-1167
NSN 2925-01-461-6372