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 6105-01-502-6947
NSN 6610-00-104-3429
NSN 5895-00-841-1745
NSN 5960-00-602-9906
NSN 6650-00-684-3060
NSN 6105-01-259-6879
NSN 6145-01-173-4319
NSN 5960-01-356-9287
NSN 7035-01-149-7502
NSN 5975-01-067-0425
NSN 6220-01-308-3918
NSN 6110-01-381-6092