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 5905-01-484-6985
NSN 5965-01-408-9551
NSN 5915-00-090-4273
NSN 7035-01-004-8819
NSN 6645-01-242-4826
NSN 5996-01-219-3435
NSN 6685-00-455-9941
NSN 5990-01-544-0364
NSN 6110-00-928-5986
NSN 6110-01-259-4402
NSN 5905-01-397-1661
NSN 5855-01-293-1592