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 6240-01-444-1673
NSN 6110-01-227-3869
NSN 6130-00-109-9091
NSN 6610-01-310-3313
NSN 5965-00-933-8971
NSN 6610-01-510-8687
NSN 6105-01-169-8222
NSN 5985-01-334-6741
NSN 5895-01-228-5874
NSN 5998-01-522-0689
NSN 6130-00-266-7496
NSN 6150-01-098-9317