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 5835-00-198-4936
NSN 5915-01-333-4749
NSN 5996-01-311-4424
NSN 6130-00-039-8534
NSN 6220-01-223-7749
NSN 4140-00-944-7318
NSN 5996-00-205-2933
NSN 5975-01-243-0221
NSN 4140-00-550-2994
NSN 6135-01-238-2878
NSN 5965-01-406-4164
NSN 6105-01-464-4684