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 5930-01-437-9081
NSN 5975-01-442-5191
NSN 4140-01-438-3854
NSN 6145-00-832-9529
NSN 6110-01-108-0215
NSN 5915-00-394-6523
NSN 6105-01-310-9799
NSN 5999-00-815-0526
NSN 5855-01-469-8099
NSN 5960-01-331-3817
NSN 5835-01-593-7579
NSN 5999-00-419-7213