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 5965-01-420-6613
NSN 5965-01-587-8853
NSN 5998-01-241-7387
NSN 5920-00-823-6088
NSN 6685-01-330-2605
NSN 6135-01-041-3829
NSN 6145-00-144-0918
NSN 6220-00-727-5274
NSN 6685-01-423-8076
NSN 6110-00-916-9582
NSN 5835-01-185-1102
NSN 6150-01-046-2827