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 6105-01-651-4129
NSN 5920-01-482-6006
NSN 5950-01-286-0679
NSN 6150-01-340-0126
NSN 6620-00-738-5594
NSN 6145-01-258-4738
NSN 5920-01-608-8347
NSN 5965-01-073-1014
NSN 5998-01-248-5016
NSN 5985-01-065-4429
NSN 6145-00-975-4457
NSN 5855-01-223-0833