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 6320-00-400-8042
NSN 5998-01-554-1899
NSN 6320-00-701-0437
NSN 5998-01-642-8184
NSN 6110-00-066-4548
NSN 6135-00-918-6993
NSN 5915-01-081-0861
NSN 6105-01-433-2204
NSN 5835-01-512-4834
NSN 5910-01-406-3505
NSN 5920-01-648-1510
NSN 5855-01-364-9810