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 5950-00-661-2612
NSN 7035-00-991-6877
NSN 5895-01-467-2061
NSN 5945-01-421-1808
NSN 5920-01-084-6475
NSN 6150-01-411-6740
NSN 5910-01-563-5350
NSN 5998-01-618-7692
NSN 5920-01-475-7091
NSN 6110-00-004-8883
NSN 6110-00-054-7278
NSN 5998-00-210-4777