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 6110-00-244-0427
NSN 5930-01-442-4757
NSN 6645-01-063-8243
NSN 5996-01-519-3843
NSN 5990-01-463-2279
NSN 5996-01-508-5676
NSN 5999-01-256-2851
NSN 5996-01-104-4161
NSN 7035-01-162-7452
NSN 5920-01-444-4082
NSN 5855-01-361-1362
NSN 5999-01-364-0876