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 6110-01-504-5907
NSN 6645-01-625-1192
NSN 5996-01-334-3038
NSN 5965-01-386-2988
NSN 5998-00-795-0236
NSN 5905-00-926-2905
NSN 6110-01-522-1433
NSN 2925-01-448-2880
NSN 6105-00-338-3877
NSN 5895-01-470-3805
NSN 5960-01-648-1872
NSN 4140-01-572-8983