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 5910-01-203-4683
NSN 6645-01-627-8040
NSN 5998-00-874-0744
NSN 5915-01-360-3787
NSN 5975-00-136-1254
NSN 6105-01-279-4100
NSN 5835-01-143-9143
NSN 6130-01-295-5344
NSN 6130-01-096-2280
NSN 5965-00-964-1756
NSN 5998-01-123-0072
NSN 6110-00-148-8536