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 5985-00-013-7932
NSN 6150-00-815-5984
NSN 5945-00-763-8698
NSN 5930-01-174-1643
NSN 5996-01-182-1125
NSN 5905-01-200-6246
NSN 6105-00-401-5379
NSN 5835-00-064-5312
NSN 5960-01-502-3268
NSN 5920-01-094-7284
NSN 5910-00-952-5654
NSN 5935-01-023-7662