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 5895-00-696-2047
NSN 6610-00-371-5953
NSN 5935-01-580-0709
NSN 5835-01-303-6563
NSN 5999-01-502-3378
NSN 6645-01-420-6804
NSN 4140-00-529-0844
NSN 5895-01-063-1916
NSN 6105-00-679-2804
NSN 6135-00-087-5300
NSN 6105-01-260-5554
NSN 6685-01-110-6563