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 6650-00-068-2208
NSN 5910-01-631-7131
NSN 6130-01-366-4310
NSN 5965-00-258-6809
NSN 6685-01-570-5253
NSN 5915-01-158-0176
NSN 5945-01-579-6583
NSN 5910-00-229-4545
NSN 5960-01-089-8155
NSN 2925-01-424-0235
NSN 5915-01-271-1767
NSN 6620-00-469-2502