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 5985-01-344-2410
NSN 5990-00-566-5987
NSN 5835-00-896-0063
NSN 6145-00-104-6047
NSN 5996-00-721-2194
NSN 6130-01-514-0420
NSN 5910-00-823-6310
NSN 6150-01-410-8566
NSN 5855-00-310-2740
NSN 6610-01-534-2147
NSN 5895-01-010-3518
NSN 5855-00-869-3635