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 6135-01-010-0891
NSN 5965-00-061-1061
NSN 5905-00-402-3838
NSN 6105-01-437-6876
NSN 5999-01-587-2988
NSN 6110-01-502-5617
NSN 5990-00-116-6590
NSN 5835-01-414-3258
NSN 6130-01-656-7140
NSN 7035-01-468-6532
NSN 5985-01-523-3303
NSN 5910-00-246-9168