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.
Classification: Gaskets,washers & other seals
NSN 6645-00-363-9775
NSN 5999-00-679-9934
NSN 6685-01-522-9561
NSN 6110-01-518-7571
NSN 5998-00-593-5450
NSN 5920-01-132-9395
NSN 2925-01-143-4229
NSN 6110-01-287-8988
NSN 5935-01-461-7980
NSN 5935-00-902-0987
NSN 5960-01-292-0027
NSN 4140-01-593-9767